'Be Strong' in the Bible

and said, O man greatly beloved, do not fear. Peace to you; be strong; yes, be strong. And when he had spoken to me, I was made stronger, and I said, Speak my lord, for you have made me stronger.

And the king of the south shall be strong. And one of his rulers, even he shall overcome him and have power. His kingdom shall be a great kingdom.

And after they join him, he will practice deceit. For he will come and be strong with a few people.

And he will ruin by flattery those who do evil against the covenant. But the people who know their God will be strong and will work.