'Trusting' in the Bible

The Lord said to Moses, “How long will these people treat me disrespectfully and reject Me? And how long will they not believe in Me, despite all the [miraculous] signs which I have performed among them?

Then Israel believed in [the validity of] His words;They sang His praise.

Then they despised the pleasant land [of Canaan];They did not believe in His word nor rely on it,

He will not fear bad news;His heart is steadfast, trusting [confidently relying on and believing] in the Lord.

For the Lord God, the Holy One of Israel has said this,“In returning [to Me] and rest you shall be saved,In quietness and confident trust is your strength.”But you were not willing,