How do we know the doctrine of God's unchanging love is true?

The truth of God's unchanging love is grounded in His nature, which does not fluctuate like human emotions. As seen in Hebrews 13:8, 'Jesus Christ is the same yesterday, today, and forever,' this reflects the Father's immutable love toward His children. The Scriptures affirm that God has always been gracious and loving towards His elect, as seen in Jeremiah 31:3, where He declares, 'I have loved you with an everlasting love.' This eternal commitment underscores that God's attitude toward His people has always been one of peace and affection.