I will ransom them from the power of Sheol. I will redeem them from death! Death, where are your plagues? Sheol, where is your destruction?  Compassion will be hidden from my eyes.
"Repentance shall be hid from mine eyes ..." The clear meaning of that is that God will not repent of his glorious promise.  The immutable and eternal God will do what he promised!  There is no such thing as God's changing his holy purpose of redeeming a portion of apostate humanity from sin and from the power of the grave.