If I bear witness of myself, my witness is not true.
John 8:13
The Pharisees therefore said unto Him, "Thou bearest record of thyself; thy record is not true."
John 8:14
Jesus answered and said unto them, "Though I bear record of Myself, yet My record is true, for I know whence I came and whither I go; but ye cannot tell whence I come and whither I go.
John 8:54
Jesus answered, "If I honor Myself, My honor is nothing. It is My Father that honoreth Me, of whom ye say that He is your God.
Proverbs 27:2
Let another man praise thee, and not thine own mouth; a stranger, and not thine own lips.
Revelation 3:14
"And unto the angel of the church of the Laodiceans write: `These things saith the Amen, the faithful and true witness, the beginning of the creation of God: