'Be Strong' in the Bible

And he saith, 'If Aram be stronger than I, then thou hast been to me for salvation, and if the Bene-Ammon be stronger than thou, then I have come to give salvation to thee;

be strong and strengthen thyself for our people, and for the cities of our God, and Jehovah doth that which is good in His eyes.'

And Absalom commandeth his young men, saying, 'See, I pray thee, when the heart of Amnon is glad with wine, and I have said unto you, Smite Amnon, that ye have put him to death; fear not; is it not because I have commanded you? be strong, yea, become sons of valour.'