Mark 1:15

Acts 2:36-38 NIV
“Therefore let all Israel be assured of this: God has made this Jesus, whom you crucified, both Lord and Messiah.” When the people heard this, they were cut to the heart and said to Peter and the other apostles, “Brothers, what shall we do?” Peter replied, “Repent and be baptized, every one of you, in the name of Jesus Christ for the forgiveness of your sins. And you will receive the gift of the Holy Spirit.

Acts 20:21 NIV
I have declared to both Jews and Greeks that they must turn to God in repentance and have faith in our Lord Jesus.

Ephesians 1:10 NIV
to be put into effect when the times reach their fulfillment —to bring unity to all things in heaven and on earth under Christ.

Matthew 3:2 NIV
and saying, “Repent, for the kingdom of heaven has come near.”