Luke 22:32
But I prayed earnestly for you, that your faith would not fail [to be strong]. And when you have turned back [i.e., from going astray briefly], provide [spiritual] support to your brothers."
Luke 22:43
Now an angel from heaven appeared to Him and strengthened Him. [See Matt. 4:11].
Acts 18:23
After spending some time there, he left and traveled through the district of Galatia, [and] then through Phrygia, strengthening [spiritually] all the disciples [along the way].
2 Corinthians 12:9-10
But God said to me, "My unearned favor is enough for you, for my power is made complete in [your] weakness." Therefore, I will most gladly boast, so that the power of Christ can rest on me.
Ephesians 3:16
[I pray] that, according to God's glorious abundance, He would empower you to become [spiritually] strong through His Holy Spirit in your inner person,
Philippians 4:13
I can do everything through Christ, who gives me the strength.
Colossians 1:11
[We also pray that you will be] strengthened with great power, according to God's glorious might, so that you will have great endurance and patience [coupled] with joy.