1 Thessalonians 5:24

He who calls you will not fail you; he will complete his work.

1 John 4:1-3

Dear friends, do not trust every inspiration, but test each inspiration, to see whether it proceeds from God; because many false Prophets have gone out into the world.

Revelation 2:2

I know your life, your toil and endurance, and I know that you cannot tolerate evil-doers. I know, too, how you tested those who declare that they are Apostles, though they are not, and how you proved them false.

Treasury of Scripture Knowledge

Summary

And if thou say in thine heart, How shall we know the word which the LORD hath not spoken?

Bible References

General references

1 Thessalonians 5:24
He who calls you will not fail you; he will complete his work.
1 John 4:1
Dear friends, do not trust every inspiration, but test each inspiration, to see whether it proceeds from God; because many false Prophets have gone out into the world.
Revelation 2:2
I know your life, your toil and endurance, and I know that you cannot tolerate evil-doers. I know, too, how you tested those who declare that they are Apostles, though they are not, and how you proved them false.