'I Am Not Worthy' in the Bible

John answered all, saying, I indeed baptize you with water, but He who is mightier than I comes, the thong of whose sandals I am not worthy to loose. He shall baptize you with the Holy Spirit and with fire,

Then Jesus went with them. But He being yet not far off from the house, the centurion sent friends to Him, saying to Him, Lord, do not trouble Yourself. For I am not worthy that You should enter under my roof.