Why is God's mercy essential for salvation?

God's mercy is critical as it allows Him to forgive sins without compromising His justice. The Old Testament and New Testament both affirm that only the merciful God can redeem humanity; He sent His Son, Jesus Christ, to bear the punishment for sins so that mercy could be extended. This is not a contradiction to His holiness, as justice was satisfied on the cross. For believers, knowing that God delights in showing mercy assures them of their standing with Him, as expressed in Psalm 46:1, indicating that God is our refuge and strength, demonstrating His responsive grace in times of trouble.