But there are some of you who do not believe." For Jesus knew from the beginning who were the ones who did not believe, and who was the one who would betray Him.
And yet you have not known Him, but I know Him. And if I would say that I do not know Him, I would be like you, a liar; but I do know Him, and I keep His word.
Nevertheless the firm foundation of God stands, having this seal: "The Lord knows those that are His," and, "Let everyone naming the name of the Lord depart from unrighteousness."