'Be Strong' in the Bible

And now let your hands be strong, and be ye valiant; for your master Saul is dead, and also the house of Judah have anointed me king over them.

Be strong, and let us shew ourselves valiant for our people and for the cities of our God; and Jehovah do what is good in his sight.

And Ahithophel said to Absalom, Go in to thy father's concubines, whom he has left to keep the house; and all Israel shall hear that thou art become odious with thy father; and the hands of all that are with thee shall be strong.