'Oughtest' in the Bible

Now therefore hold him not guiltless: for thou art a wise man, and knowest what thou oughtest to do unto him; but his hoar head bring thou down to the grave with blood.

Thou oughtest therefore to have put my money to the exchangers, and then at my coming I should have received mine own with usury.

He lodgeth with one Simon a tanner, whose house is by the sea side: he shall tell thee what thou oughtest to do.

But if I tarry long, that thou mayest know how thou oughtest to behave thyself in the house of God, which is the church of the living God, the pillar and ground of the truth.