'Prove' in the Bible

That through them I may prove Israel, whether they will keep the way of the LORD to walk therein, as their fathers did keep it, or not.

Now these are the nations which the LORD left, to prove Israel by them, even as many of Israel as had not known all the wars of Canaan;

And they were to prove Israel by them, to know whether they would hearken unto the commandments of the LORD, which he commanded their fathers by the hand of Moses.

And Gideon said unto God, Let not thine anger be hot against me, and I will speak but this once: let me prove, I pray thee, but this once with the fleece; let it now be dry only upon the fleece, and upon all the ground let there be dew.