Why is faith in Christ essential for approaching God?

Hebrews emphasizes that without faith, it is impossible to please God. Faith in Christ allows us to come before God as justified and accepted because we rely on His completed work rather than our own righteousness. When we pray, we appeal to God's mercy by asking Him to remember Christ and His righteousness. This framework reflects that true faith acknowledges our need for a mediator, highlighting the imperative of Christ's death and resurrection as the foundation of our relationship with God.