Matthew 3:15
"And Jesus answering said unto him, Suffer it to be so now: for thus it becometh us to fulfil all righteousness. Then he suffered him."
Cross References (ranked by relevance)
Jesus saith unto them, My meat is to do the will of him that sent me, and to finish his work.
The LORD is well pleased for his righteousness’ sake; he will magnify the law, and make it honourable.
If ye keep my commandments, ye shall abide in my love; even as I have kept my Father’s commandments, and abide in his love.
And they were both righteous before God, walking in all the commandments and ordinances of the Lord blameless.
For I have given you an example, that ye should do as I have done to you.
And he that sent me is with me: the Father hath not left me alone; for I do always those things that please him.
For such an high priest became us, who is holy, harmless, undefiled, separate from sinners, and made higher than the heavens;