King James Version, Updated™

KJV:   1 The beginning of the gospel of Jesus Christ, the Son of God ;

KJVu: 1 The beginning of the gospel of Jesus Christ, the Son of God .

KJV:   2 As it is written in the prophets, Behold, I send my messenger before thy face, which shall prepare thy way before thee.

KJVu: 2 As it is written in the prophets, "Behold, I send my messenger before your face, who shall prepare your way before you."

KJV:   3 The voice of one crying in the wilderness, Prepare ye the way of the Lord, make his paths straight.

KJVu: 3 The voice of one crying in the wilderness, 'YOU prepare the way of the Lord, make his paths straight. ' "

KJV:   4 John did baptize in the wilderness, and preach the baptism of repentance for the remission of sins.

KJVu: 4 John baptized in the wilderness, and preached the baptism of repentance for the forgiveness of sins.

Notes: "Remission" highlighted in the KJV verse is Strong’s G859 with a Strong’s Exhaustive Concordance definition of "deliverance, forgiveness, liberty, remission. -|- From aphiemi; freedom; (figuratively) pardon — deliverance, forgiveness, liberty, remission."

KJV:   5 And there went out unto him all the land of Judaea, and they of Jerusalem, and were all baptized of him in the river of Jordan, confessing their sins.

KJVu: 5 And they went out to him all those from the land of Judaea and Jerusalem, and they were all baptized by him in the river Jordan, confessing their sins.

KJV:   6 And John was clothed with camel’s hair, and with a girdle of a skin about his loins; and he did eat locusts and wild honey;

KJVu: 6 Now John was clothed with camel’s hair, and with a belt of leather around his hips; and he ate locusts and wild honey;

Notes:

KJV:   7 And preached, saying, There cometh one mightier than I after me, the latchet of whose shoes I am not worthy to stoop down and unloose.

KJVu: 7 He preached, saying, "After me, there comes one mightier than I, the latchet of whose shoes I am not worthy to stoop down and loosen.

KJV:   8 I indeed have baptized you with water : but he shall baptize you with the Holy Ghost.

KJVu: 8 I indeed have baptized YOU with water , but he shall baptize YOU with the Holy Ghost. "

KJV:   9 And it came to pass in those days, that Jesus came from Nazareth of Galilee, and was baptized of John in Jordan.

KJVu: 9 And it came to pass in those days, that Jesus came from Nazareth of Galilee, and was baptized by John in the Jordan.

KJV:   10 And straightway coming up out of the water, he saw the heavens opened, and the Spirit like a dove descending upon him :

KJVu: 10 Immediately coming up out of the water, he saw the heavens opened, and the Spirit like a dove descending on him .

KJV:   11 And there came a voice from heaven, saying, Thou art my beloved Son, in whom I am well pleased.

KJVu: 11 And a voice came from heaven, saying, "You are my beloved Son, in whom I am well pleased. "

KJV:   12 And immediately the Spirit driveth him into the wilderness.

KJVu: 12 And immediately the Spirit drove him into the wilderness.

KJV:   13 And he was there in the wilderness forty days, tempted of Satan ; and was with the wild beasts; and the angels ministered unto him.

KJVu: 13 He was there in the wilderness 40 days, tempted by Satan , and was with the wild beasts; and the angels ministered to him.

KJV:   14 Now after that John was put in prison, Jesus came into Galilee, preaching the gospel of the kingdom of God,

KJVu: 14 Now after John was put in prison, Jesus came to Galilee, preaching the gospel of the kingdom of God,

KJV:   15 And saying, The time is fulfilled, and the kingdom of God is at hand : repent ye, and believe the gospel.

KJVu: 15 and saying, "The time is fulfilled, and the kingdom of God is at hand ; all of YOU repent, and believe the gospel. "

KJV:   16 Now as he walked by the sea of Galilee, he saw Simon and Andrew his brother casting a net into the sea : for they were fishers.

KJVu: 16 Now as he walked by the sea of Galilee, he saw Simon and Andrew his brother casting a net into the sea ; for they were fishermen.

KJV:   17 And Jesus said unto them, Come ye after me, and I will make you to become fishers of men.

KJVu: 17 And Jesus said to them, "YOU come, and follow me, and I will make YOU fishers of men. "

Notes: "After" highlighted in the KJV verse is Strong’s G3694 with a Thayer’s Greek Lexicon definition of "ὀπίσω perhaps) from ἡ ὄπις; and this from ἐπω, ἕπομαι, to follow (but cf. Vanicek, p. 530, adverb of place and time, from Homer down; the Sept. for אַחַר, אָחור and especially for אַחֲרֵי; (at the) back, behind, after."

KJV:   18 And straightway they forsook their nets, and followed him.

KJVu: 18 Immediately they left their nets, and followed him.

Notes: "Forsook" highlighted in the KJV verse is Strong’s G863 with a Thayer’s Greek Lexicon definition of "to leave so that what is left may remain, leave remaining: οὐ μή ἀφεθῇ ὧδε λίθος ἐπί λίθον (or λίθῳ)"

KJV:   19 And when he had gone a little further thence, he saw James the son of Zebedee, and John his brother, who also were in the ship mending their nets.

KJVu: 19 When he had gone a little further from there, he saw James the son of Zebedee, and John his brother, who also were in the ship mending their nets.

KJV:   20 And straightway he called them : and they left their father Zebedee in the ship with the hired servants, and went after him.

KJVu: 20 And immediately he called them , and they left their father Zebedee in the ship with the hired servants, and followed after him.

Notes: "Went" highlighted in the KJV verse is Strong’s G565 with a Strong’s Exhaustive Concordance definition of "come, depart, go away, pass away. -|- From apo and erchomai; to go off (i.e. Depart), aside (i.e. Apart) or behind (i.e. Follow), literally or figuratively — come, depart, go (aside, away, back, out,…​ Ways), pass away, be past."

KJV:   21 And they went into Capernaum ; and straightway on the sabbath day he entered into the synagogue, and taught.

KJVu: 21 Then they went into Capernaum , and immediately on the sabbath day he entered into the synagogue, and taught.

KJV:   22 And they were astonished at his doctrine : for he taught them as one that had authority, and not as the scribes.

KJVu: 22 And they were astonished at his doctrine , for he taught them as one who had authority, and not as the scribes.

KJV:   23 And there was in their synagogue a man with an unclean spirit; and he cried out,

KJVu: 23 In their synagogue there was a man with an unclean spirit, and he cried out,

KJV:   24 Saying, Let us alone; what have we to do with thee, thou Jesus of Nazareth? art thou come to destroy us? I know thee who thou art, the Holy One of God.

KJVu: 24 saying, "Let us alone; what have we to do with you, Jesus of Nazareth? Have you come to destroy us? I know you and who you are, the Holy One of God. "

KJV:   25 And Jesus rebuked him, saying, Hold thy peace, and come out of him.

KJVu: 25 Jesus rebuked him, saying, "Hold your peace, and come out of him. "

KJV:   26 And when the unclean spirit had torn him, and cried with a loud voice, he came out of him.

KJVu: 26 And when the unclean spirit had violently shook him, and cried with a loud voice, he came out of him.

Notes: "Torn" highlighted in the KJV verse is Strong’s G4682 with a Strong’s Exhaustive Concordance definition of "to convulse, shake to and fro -|- Prolongation from spairo (to grasp; apparently strengthened from spao through the idea of spasmodic contraction); to mangle, i.e. Convluse with epilepsy — rend, tear." Merriam-Webster defines "convulse" as "to shake or agitate violently" so "violently" was included. "Violently shook" is more readily understandable than "convulsed" yet conveys the same meaning.

KJV:   27 And they were all amazed, insomuch that they questioned among themselves, saying, What thing is this? what new doctrine is this? for with authority commandeth he even the unclean spirits, and they do obey him.

KJVu: 27 They were all amazed, so that they questioned among themselves, saying, "What is this thing? What new doctrine is this? For with authority he commands even the unclean spirits, and they obey him. "

KJV:   28 And immediately his fame spread abroad throughout all the region round about Galilee.

KJVu: 28 And immediately his fame spread abroad throughout all the region around Galilee.

KJV:   29 And forthwith, when they were come out of the synagogue, they entered into the house of Simon and Andrew, with James and John.

KJVu: 29 Immediately after they came out of the synagogue, they entered the house of Simon and Andrew, with James and John.

KJV:   30 But Simon’s wife’s mother lay sick of a fever, and anon they tell him of her.

KJVu: 30 But Simon’s wife’s mother lay sick with a fever, and at once they told him about her.

Notes: "Anon" highlighted in the KJV verse is Strong’s G2112 with a Strong’s definition of "at once."