How do we know Jesus Christ's love is true?

The truth of Jesus Christ's love is demonstrated through His sacrificial work on the cross, where He paid the penalty for sin. This act is not only a historical reality but a theological necessity, as it highlights that God, in His love, takes on the punishment deserved by sinners. Verses such as John 3:16 and 1 John 4:9-10 illustrate that God's love is proactive, sending His Son to be the propitiation for our sins, thus revealing His purpose to save those whom He has chosen. This is not merely affection but a deep, covenantal love that is transformative.