'Myself' in the Bible

I appeared to Abraham, to Isaac, and to Jacob (Israel) as God Almighty [El Shaddai], but by My name, Lord, I did not make Myself known to them [in acts and great miracles].

‘You have seen what I did to the Egyptians, and how I carried you on eagles’ wings, and brought you to Myself.

“But as for you, say to the Israelites, ‘You shall most certainly observe My Sabbaths, for it is a sign between Me and you throughout your generations, so that you may know [without any doubt] and acknowledge that I am the Lord who sanctifies you and sets you apart [for Myself].