Repentance In The Commission of The Disciples.

Mark 6 : 7-13.

And Jesus called the twelve to Himself, and began to send them out two by two, and gave them power over unclean spirits. He commanded them to take nothing for the journey except a staff—no bag, no bread, no copper in their money belts— but to wear sandals, and not to put on two tunics. Jesus said to them, “In whatever place you enter a house, stay there till you depart from that place. And whoever will not receive you nor hear you, when you depart from there, shake off the dust under your feet as a testimony against them. Assuredly, I say to you, it will be more tolerable for Sodom and Gomorrah on the day of judgment than for that city!” So they went out and preached that people should repent. And they cast out many demons, and anointed with oil many who were sick, and healed them.

Luke 24 : 44-49.

And Jesus said unto them, These are the words which I spake unto you, while I was yet with you, that all things must be fulfilled, which were written in the law of Moses, and in the prophets, and in the psalms, concerning Me. Then Jesus opened their understanding, that they might understand the scriptures, And said unto them, Thus it is written, and thus it behoved Christ to suffer, and to rise from the dead the third day: And that repentance and remission of sins should be preached in His name among all nations, beginning at Jerusalem. And you are witnesses of these things. And, behold, I send the Promise of My Father upon you: but tarry you in the city of Jerusalem, until you are endued with power from on high. 

Repentance In The Lives Of Believers.

Luke 17 : 1-4.

Then Jesus said to the disciples, “It is impossible that no offenses should come, but woe to him through whom they do come! It would be better for him if a millstone were hung around his neck, and he were thrown into the sea, than that he should offend one of these little ones. Take heed to yourselves. If your brother sins against you, rebuke him; and if he repents, forgive him. And if he sins against you seven times in a day, and seven times in a day returns to you, saying, ‘I repent,’ you shall forgive him.”