Hebrews 9:17

And a will is only of force in the case of a deceased person, being never of any avail so long as he who made it lives.

Galatians 3:15

Brethren, even a covenant made by a man--to borrow an illustration from daily life--when once formally sanctioned is not liable to be set aside or added to.

John 14:27

Peace I leave with you: my own peace I give to you. It is not as the world gives its greetings that I give you peace. Let not your hearts be troubled or dismayed.

Treasury of Scripture Knowledge

Summary

For a testament is of force after men are dead: otherwise it is of no strength at all while the testator liveth.

General references

Bible References

General references

John 14:27
Peace I leave with you: my own peace I give to you. It is not as the world gives its greetings that I give you peace. Let not your hearts be troubled or dismayed.