'Myself' in the Bible

And there came a man of God unto Eli, and said unto him, Thus saith Jehovah, Did I reveal myself unto the house of thy father, when they were in Egypt in bondage to Pharaoh's house?

therefore said I, Now will the Philistines come down upon me to Gilgal, and I have not entreated the favor of Jehovah: I forced myself therefore, and offered the burnt-offering.

And David said unto Jonathan, Behold, to-morrow is the new moon, and I should not fail to sit with the king at meat: but let me go, that I may hide myself in the field unto the third day at even.

and blessed be thy discretion, and blessed be thou, that hast kept me this day from bloodguiltiness, and from avenging myself with mine own hand.