Mark 1:15

saying, The time is completed, and the kingdom of God is at hand; change your minds and believe in the good news.

Galatians 4:4

but when the fullness of time came, God sent forth his Son, born of a woman, born under the law,

Ephesians 1:10

in respect to the dispensation of the fullness of times, to bring all things into one in Christ, the things which are in heaven and the things which are on earth, in him

Matthew 3:2

Change your minds, for the kingdom of Heaven is at hand.

Acts 20:21

testifying both to Jews and Greeks the change of mind to God, and the faith in our Lord Jesus.

Matthew 4:17

From that time Jesus began to preach, and to say, Change your minds; for the kingdom of heaven is at hand.

Matthew 10:7

and as you go, preach, saying, The kingdom of Heaven is at hand.

Matthew 21:31-32

Which of the two did the will of the father? They said to him, The first. Jesus said to them, I tell you truly, that the publicans and harlots go into the kingdom of God before you.

Luke 10:9

and cure the sick in it, and say to them, The kingdom of God has come nigh to you.

Luke 10:11

Even the dust of your city which adheres to our feet we wipe off for you; but know this, that the kingdom of God is at hand.

Luke 24:47

and that a change of mind and forgiveness of sins should be preached in his name to all nations, beginning from Jerusalem.

Acts 2:36-38

Let all the house of Israel therefore know certainly, that God has made this Jesus whom you crucified both Lord and Christ.

Romans 16:26

but made manifest now by the scriptures of the prophets, by the command of the eternal God, for the obedience of the faith among all nations,

2 Timothy 2:25-26

in meekness correcting the adversaries, that God may give them a change of mind to a knowledge of the truth,

Treasury of Scripture Knowledge

Summary

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

Believe

General references

Bible References

The time

Galatians 4:4
but when the fullness of time came, God sent forth his Son, born of a woman, born under the law,
Ephesians 1:10
in respect to the dispensation of the fullness of times, to bring all things into one in Christ, the things which are in heaven and the things which are on earth, in him

The kingdom

Matthew 3:2
Change your minds, for the kingdom of Heaven is at hand.
Matthew 4:17
From that time Jesus began to preach, and to say, Change your minds; for the kingdom of heaven is at hand.
Matthew 10:7
and as you go, preach, saying, The kingdom of Heaven is at hand.
Luke 10:9
and cure the sick in it, and say to them, The kingdom of God has come nigh to you.

Believe

Romans 16:26
but made manifest now by the scriptures of the prophets, by the command of the eternal God, for the obedience of the faith among all nations,

General references

Luke 9:2
and sent them out to proclaim the kingdom of God, and to cure the sick.