New Testament Hyper-concordance: "Confirm"

Matt.18.16	But if he does not listen, take one or two others along with you, that every word may be confirmed by the evidence of two or three witnesses.
Mark.16.20	And they went forth and preached everywhere, while the Lord worked with them and confirmed the message by the signs that attended it. Amen.
Rom.15.8	For I tell you that Christ became a servant to the circumcised to show God's truthfulness, in order to confirm the promises given to the patriarchs,
1Cor.1.6	even as the testimony to Christ was confirmed among you--
2Pet.1.10	Therefore, brethren, be the more zealous to confirm your call and election, for if you do this you will never fall;