'Doest' in the Bible

If thou doest well, shalt thou not be accepted? and if thou doest not well, sin lieth at the door. And unto thee shall be his desire, and thou shalt rule over him.

And it came to pass at that time, that Abimelech and Phichol the chief captain of his host spake unto Abraham, saying, God is with thee in all that thou doest:

And he said, What shall I give thee? And Jacob said, Thou shalt not give me anything. If thou doest this for me, I will again feed and keep thy flock: