'Myself' in the Bible

And a man of God came to Eli and said to him, The Lord says, Did I let myself be seen by your father's people when they were in Egypt, servants in Pharaoh's house?

And I will make a true priest for myself, one who will do what is in my heart and in my mind: and I will make for him a family which will not come to an end; and his place will be before my holy one for ever.

I said, Now the Philistines will come down on me at Gilgal, and I have made no prayer for help to the Lord: and so, forcing myself to do it, I made a burned offering.

And the Lord said to Samuel, How long will you go on sorrowing for Saul, seeing that I have put him from his place as king over Israel? Take oil in your vessel and go; I will send you to Jesse, the Beth-lehemite: for I have got a king for myself among his sons.