G1991–ἐπιστηρίζω–epistērizō

Confirming the souls of the disciples, exhorting them to continue in the faith, and that we must through much tribulation enter into the kingdom of God.

ἐπιστηρίζοντες epistērizontes “strengthening”

And Judas and Silas, being prophets also themselves, exhorted the brethren with many words, and confirmed them.

ἐπεστήριξαν. epestērixan “strengthened [them].”

And he went through Syria and Cilicia, confirming the churches.

ἐπιστηρίζων epistērizōn “strengthening”

And after he had spent some time there, he departed and went over all the country of Galatia and Phrygia in order, strengthening all the disciples.

ἐπιστηρίζων epistērizōn “strengthening”