Luke 22:32

But I have prayed for thee, that thy faith fail not. And do thou, when thou hast returned to me, strengthen thy brethren.

Luke 22:43

And there appeared to him an angel from heaven, strengthening him.

Ephesians 4:29

Let no foul language proceed out of your mouth, but whatever is good for edification, as the need may be, that it may benefit the hearers;

Colossians 4:6

Let your speech be always with grace, seasoned with salt, that ye may know how ye ought to answer every one.

Hebrews 12:12

Wherefore lift up the hands which hang down, and the feeble knees;

Treasury of Scripture Knowledge

Summary

Behold, thou hast instructed many, and thou hast strengthened the weak hands.

And thou hast

General references

Bible References

Behold

Ephesians 4:29
Let no foul language proceed out of your mouth, but whatever is good for edification, as the need may be, that it may benefit the hearers;
Colossians 4:6
Let your speech be always with grace, seasoned with salt, that ye may know how ye ought to answer every one.

And thou hast

Luke 22:32
But I have prayed for thee, that thy faith fail not. And do thou, when thou hast returned to me, strengthen thy brethren.

General references

Hebrews 12:12
Wherefore lift up the hands which hang down, and the feeble knees;