Verses with the word strengtheneth in the Old Testament (6 verses):
For he stretcheth out his hand against God, and strengtheneth himself against the Almighty.
And wine that maketh glad the heart of man, and oil to make his face to shine, and bread which strengtheneth man's heart.
She girdeth her loins with strength, and strengtheneth her arms.
Wisdom strengtheneth the wise more than ten mighty men which are in the city.
He heweth him down cedars, and taketh the cypress and the oak, which he strengtheneth for himself among the trees of the forest: he planteth an ash, and the rain doth nourish it.
That strengtheneth the spoiled against the strong, so that the spoiled shall come against the fortress.