'Thyself' in the Bible

and it hath been, when these signs come to thee -- do for thyself as thy hand findeth, for God is with thee.

And David cometh in to Nob, unto Ahimelech the priest, and Ahimelech trembleth at meeting David, and saith to him, 'Wherefore art thou thyself alone, and no man with thee?'

And the priest saith, 'The sword of Goliath the Philistine, whom thou didst smite in the valley of Elah, lo, it is wrapped in a garment behind the ephod, if it thou dost take to thyself, take; for there is none other save it in this place.' And David saith, 'There is none like it -- give it to me.'