'I Am Not Worthy' in the Bible

I indeed am baptizing you in water on a profession of repentance; but He who is coming after me is mightier than I: His sandals I am not worthy to carry for a moment; He will baptize you in the Holy Spirit and in fire.

he answered the question by saying to them all, "As for me, I am baptizing you with water, but One mightier than I is coming, whose very sandal-strap I am not worthy to unfasten: He will baptize you in the Holy Spirit and with fire.

Then Jesus went with them. But when He was not far from the house, the Captain sent friends to Him with the message: "Sir, do not trouble to come. I am not worthy of having you come under my roof;

He who is to come after me, and whose sandal-strap I am not worthy to unfasten."

But John, towards the end of his career, repeatedly asked the people, "'What do you suppose me to be? I am not the Christ. But there is One coming after me whose sandal I am not worthy to unfasten.'