'Sure' in the Bible

The law of the LORD is perfect, converting the soul: the testimony of the LORD is sure, making wise the simple.

Now I am sure that the Lord will deliver his chosen king; he will intervene for him from his holy heavenly temple, and display his mighty ability to deliver.

Then make sure you don't speak evil words or use deceptive speech!

For the music director, Jeduthun; a psalm of David. I decided, "I will watch what I say and make sure I do not sin with my tongue. I will put a muzzle over my mouth while in the presence of an evil man."

But as for me, Lord,my prayer to You is for a time of favor.In Your abundant, faithful love, God,answer me with Your sure salvation.

Thy testimonies are very sure: holiness becometh thine house, O LORD, for ever.

The works of his hands are verity and judgment; all his commandments are sure.

All Your commandments are faithful and trustworthy.They have persecuted me with a lie; help me [Lord]!

Make sure Thy servant for good, Let not the proud oppress me.