Matthew 3:6
"And were baptized of him in Jordan, confessing their sins."
Cross References (ranked by relevance)
And many that believed came, and confessed, and shewed their deeds.
I indeed baptize you with water unto repentance: but he that cometh after me is mightier than I, whose shoes I am not worthy to bear: he shall baptize you with the Holy Ghost, and with fire:
Then will I sprinkle clean water upon you, and ye shall be clean: from all your filthiness, and from all your idols, will I cleanse you.
Which stood only in meats and drinks, and divers washings, and carnal ordinances, imposed on them until the time of reformation.
Buried with him in baptism, wherein also ye are risen with him through the faith of the operation of God, who hath raised him from the dead.
And Aaron shall lay both his hands upon the head of the live goat, and confess over him all the iniquities of the children of Israel, and all their transgressions in all their sins, putting them upon the head of the goat, and shall send him away by the hand of a fit man into the wilderness:
I acknowledged my sin unto thee, and mine iniquity have I not hid. I said, I will confess my transgressions unto the LORD; and thou forgavest the iniquity of my sin. Selah.
And now why tarriest thou? arise, and be baptized, and wash away thy sins, calling on the name of the Lord.
Then they shall confess their sin which they have done: and he shall recompense his trespass with the principal thereof, and add unto it the fifth part thereof, and give it unto him against whom he hath trespassed.
He that covereth his sins shall not prosper: but whoso confesseth and forsaketh them shall have mercy.
Then remembered I the word of the Lord, how that he said, John indeed baptized with water; but ye shall be baptized with the Holy Ghost.
John answered, saying unto them all, I indeed baptize you with water; but one mightier than I cometh, the latchet of whose shoes I am not worthy to unloose: he shall baptize you with the Holy Ghost and with fire:
If they shall confess their iniquity, and the iniquity of their fathers, with their trespass which they trespassed against me, and that also they have walked contrary unto me;
And Joshua said unto Achan, My son, give, I pray thee, glory to the LORD God of Israel, and make confession unto him; and tell me now what thou hast done; hide it not from me.
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.
And were all baptized unto Moses in the cloud and in the sea;
For John truly baptized with water; but ye shall be baptized with the Holy Ghost not many days hence.
And I prayed unto the LORD my God, and made my confession, and said, O Lord, the great and dreadful God, keeping the covenant and mercy to them that love him, and to them that keep his commandments;
Of the doctrine of baptisms, and of laying on of hands, and of resurrection of the dead, and of eternal judgment.
Confess your faults one to another, and pray one for another, that ye may be healed. The effectual fervent prayer of a righteous man availeth much.