Luke 22:32

But I prayed for you, Simon, that your faith should not fail. And you, when you have returned to me, are to strengthen your Brothers."

Luke 22:43

[Presently there appeared to him an angel from Heaven, who strengthened him.

Ephesians 6:10

For the future, find strength in your union with the Lord, and in the power which comes from his might.

2 Timothy 2:1

Do you, then, my Child, find strength in the help which comes from the union with Christ Jesus;

Hebrews 12:12-13

Therefore 'lift again the down-dropped hands and straighten the weakened knees;

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