What does the Bible say about the purpose of the cross?

The cross of the Lord Jesus Christ serves as the central point of the Gospel, aiming to satisfy divine justice and fulfill all righteousness. God cannot overlook sin; sin must be paid for in a manner that meets His divine justice. Through His death on the cross, Christ not only enacted the atonement needed but also fulfilled the righteous requirement of the law. As stated in Philippians 2, He willingly obeyed unto death, culminating His perfect obedience to the Father at the cross. Only through this, can God's justice be satisfied, and righteousness established for His people.