Luke 22:32
But *I* have prayed for *you* that your faith may not fail, and you, when at last you have come back to your true self, must strengthen your brethren."
Luke 22:43
And there appeared to Him an angel from Heaven, strengthening Him;
Ephesians 4:29
Let no unwholesome words ever pass your lips, but let all your words be good for benefiting others according to the need of the moment, so that they may be a means of blessing to the hearers.
Colossians 4:6
Let your language be always seasoned with the salt of grace, so that you may know how to give every man a fitting answer.
Hebrews 12:12
Therefore strengthen the drooping hands and paralysed knees,