'I Am Not Worthy' in the Bible

And Jesus went with them. But already, when he was not far from the house, the centurion sent to him friends, saying to him, Lord, do not trouble thyself, for I am not worthy that thou shouldest enter under my roof.

he who comes after me, the thong of whose sandal I am not worthy to unloose.

And as John was fulfilling his course he said, Whom do ye suppose that I am? I am not he. But behold, there comes one after me, the sandal of whose feet I am not worthy to loose.