There’s no contradiction there. “Those who ask for [mercy] in humility” and “those appointed unto eternal life” are the same people.
I must respectfully disagree with you, my FRiend. I do not believe that our asking for God's grace is required for God to grant us His grace. To say so would be to limit God's free will, and I obviously cannot do that.
God Himself says He is merciful on those to whom He chooses to be merciful - our request for His mercy isn't required.