'I Am Not Worthy' in the Bible

John answered them all, saying: I indeed immerse you in water; but there comes One mightier than I, the strap of whose sandals I am not worthy to loose; he will immerse you in the Holy Spirit and in fire.

And Jesus went with them. And when he was now not far from the house, the centurion sent friends to him, and said to him: Lord, give thyself no trouble; for I am not worthy that thou shouldst come under my roof.