31 If I testify concerning myself, my testimony is not true.
John 5:31 Cross References - Webster
Proverbs 27:2
2 Let another man praise thee, and not thy own mouth; a stranger, and not thy own lips.
John 8:13-14
John 8:54
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:
Revelation 3:14
14 And to 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;