John 6:60-71 English Standard Version (ESV)
60 When many of his disciples heard it, they said, “This is a hard saying; who can listen to it?” 61 But Jesus, knowing in himself that his disciples were grumbling about this, said to them, “Do you take offense at this? 62 Then what if you were to see the Son of Man ascending to where he was before? 63 It is the Spirit who gives life; the flesh is no help at all. The words that I have spoken to you are spirit and life. 64 But there are some of you who do not believe.” (For Jesus knew from the beginning who those were who did not believe, and who it was who would betray him.) 65 And he said, “This is why I told you that no one can come to me unless it is granted him by the Father.”
66 After this many of his disciples turned back and no longer walked with him.67 So Jesus said to the twelve, “Do you want to go away as well?” 68 Simon Peter answered him, “Lord, to whom shall we go? You have the words of eternal life,69 and we have believed, and have come to know, that you are the Holy One of God.” 70 Jesus answered them, “Did I not choose you, the twelve? And yet one of you is a devil.” 71 He spoke of Judas the son of Simon Iscariot, for he, one of the twelve, was going to betray him.
Psalm 17:10-15 English Standard Version (ESV)
They close their hearts to pity;
with their mouths they speak arrogantly.
They have now surrounded our steps;
they set their eyes to cast us to the ground.
He is like a lion eager to tear,
as a young lion lurking in ambush.
Arise, O Lord! Confront him, subdue him!
Deliver my soul from the wicked by your sword,
from men by your hand, O Lord,
from men of the world whose portion is in this life.[a]
You fill their womb with treasure;[b]
they are satisfied with children,
and they leave their abundance to their infants.
As for me, I shall behold your face in righteousness; when I awake, I shall be satisfied with your likeness.