Acts 14:22

14:22 They strengthened the souls of the disciples and encouraged them to continue in the faith, saying, “We must enter the kingdom of God through many persecutions.”

Acts 15:32

15:32 Both Judas and Silas, who were prophets themselves, encouraged and strengthened the brothers with a long speech.

Acts 18:23

18:23 After he spent some time there, Paul left and went through the region of Galatia and Phrygia, strengthening all the disciples.