What does Matthew 4:17 mean?

Matthew 4:17 KJV
From that time Jesus began to preach, and to say, Repent: for the kingdom of heaven is at hand.

Matthew 4:17 NKJV
From that time Jesus began to preach and to say, “Repent, for the kingdom of heaven is at hand.”

Matthew 4:17 MKJV
From that time Jesus began to preach and to say, Repent! For the kingdom of Heaven is at hand.

Matthew 4:17 KJV 2000
From that time Jesus began to preach, and to say, Repent: for the kingdom of heaven is at hand.

Interlinear KJV

From /apo/ that time /tote/ Jesus /Iesous/ began /archomai/ to preach, /kerusso/ and /kai/ to say, /lego/ Repent: /metanoeo/ for /gar/ the kingdom /basileia/ of heaven /ouranos/ is at hand. /eggizo/

Albert Barnes’ Commentary

Verse 17. No Barnes text on this verse.
{n} “no root” Job 19:28
{o} “but for a time” Job 27:10 {p} “immediately” 2 Ti 1:15

Adam Clarke’s Commentary

Verse 17. Jesus began to preach, and to say, Repent — See on Mt 3:1,2. Every preacher commissioned by God to proclaim salvation to a lost world, begins his work with preaching the doctrine of repentance. This was the case with all the prophets, John the Baptist, Jesus Christ, all the apostles, and all their genuine successors in the Christian ministry. The reasons are evident in the notes already referred to; and for the explanation of the word κηρυσσειν, preaching or proclaiming as a herald, see at the end of chap. 3.

John Wesley Commentary

V. 17. From that time Jesus began to preach – He had preached before, both to Jews and Samaritans, Joh 4:41,45. But from this time begin his solemn stated preaching.

Repent, for the kingdom of heaven is at hand – Although it is the peculiar business of Christ to establish the kingdom of heaven in the hearts of men, yet it is observable, he begins his preaching in the same words with John the Baptist: because the repentance which John taught still was, and ever will be, the necessary preparation for that inward kingdom. But that phrase is not only used with regard to individuals in whom it is to be established but also with regard to the Christian Church, the whole body of believers. In the former sense it is opposed to repentance; in the latter the Mosaic dispensation.