'Strength' in the Bible

when thou tillest the ground, it doth not add to give its strength to thee -- a wanderer, even a trembling one, thou art in the earth.'

Reuben! my first-born thou, My power, and beginning of my strength, The abundance of exaltation, And the abundance of strength;

And his bow abideth in strength, And strengthened are the arms of his hands By the hands of the Mighty One of Jacob, Whence is a shepherd, a son of Israel.