Verses for and testify

Hear ye, and testify in the house of Jacob, saith the Lord GOD, the God of hosts,

This I say therefore, and testify in the Lord, that ye henceforth walk not as other Gentiles walk, in the vanity of their mind,

Verily, verily, I say unto thee, We speak that we do know, and testify that we have seen; and ye receive not our witness.