bebaioo is used of establishing people in faith and of validating a testimony, word, salvation, or promises.

The verb is used both for establishing people, the heart, or faith in a secure condition and for validating proclaimed testimony, a word, salvation, or promises. The personal and faith-related use is shown in clauses about being confirmed to the end, being confirmed in the faith, and the heart being strengthened; the other use concerns a message or promise being confirmed.

1. Establishing people, faith, or the heart · dominant

   In 1 Corinthians 1:8, the future active form occurs in the clause about being confirmed to the end; in 2 Corinthians 1:21, the present active participle identifies God as the one confirming believers toward Christ. The present passive forms in Colossians 2:7 and Hebrews 13:9 occur respectively with being confirmed in the faith and with the heart being strengthened by grace.

   1 Corinthians 1:82 Corinthians 1:21Colossians 2:7Hebrews 13:9
2. Validating testimony, proclamation, or promises · common

   The aorist passive form in 1 Corinthians 1:6 occurs where the APB renders the testimony of Christ as confirmed, and in Hebrews 2:3 it occurs where salvation was confirmed by those who heard it. In Mark 16:20, the present active participle accompanies the Lord's working with the preachers and the APB rendering "confirmed the word through the accompanying signs"; Romans 15:8 places the aorist active infinitive with confirming the promises to the fathers.

   1 Corinthians 1:6Hebrews 2:3Mark 16:20Romans 15:8

In the Anselm Project Bible: Across these verses, the APB commonly uses "confirmed," including for testimony, believers, the word, and salvation; it uses "strengthened" for the heart in Hebrews 13:9. Because the APB is a whole-verse translation, that variation does not by itself establish separate meanings.