G0951–βεβαίωσις–bebaiōsis

Even as it is meet for me to think this of you all, because I have you in my heart; inasmuch as both in my bonds, and in the defense and confirmation of the gospel, ye all are partakers of my grace.

βεβαιώσει bebaiōsei “in confirmation”

For men verily swear by the greater: and an oath for confirmation is to them an end of all contradiction.

βεβαίωσιν bebaiōsin “confirmation”