'Strength' in the Bible

so that by two unchangeable things [His promise and His oath] in which it is impossible for God to lie, we who have fled [to Him] for refuge would have strong encouragement and indwelling strength to hold tightly to the hope set before us.

And so [because of the oath’s greater strength and force] Jesus has become the certain guarantee of a better covenant [a more excellent and more advantageous agreement; one that will never be replaced or annulled].

For a testament is of force after men are dead: otherwise it is of no strength at all while the testator liveth.

Through faith also Sara herself received strength to conceive seed, and was delivered of a child when she was past age, because she judged him faithful who had promised.

quenched the raging of fire, escaped the edge of the sword, gained strength after being weak, became mighty in battle, and put foreign armies to flight.