'Myself' in the Bible

Moses spoke with Aaron about what the LORD had said: "Among those who are near me, I'll show myself holy so that I'll be glorified before all people." So Aaron remained silent.

because the life of the flesh is in the blood itself, and I myself have given it to you all so that atonement may be made for your souls on the altar, since the blood itself makes atonement through the life that is in it.

I'll oppose you with vicious rage. Indeed, I myself will punish you seven fold on account of your sins.