'Strong' in the Bible

And look at ships! They are so big that it takes strong winds to drive them, yet they are steered by a tiny rudder wherever the helmsman directs.

Or does it seem to you that it is for nothing that the holy Writings say, The spirit which God put into our hearts has a strong desire for us?

Be as calm in your waiting; let your hearts be strong: because the coming of the Lord is near.

Be confessing to one another the trespasses, and be praying for one another, that ye may be healed; very strong is a working supplication of a righteous man;

Elijah was a man of flesh and blood as we are, and he made a strong prayer that there might be no rain; and there was no rain on the earth for three years and six months.