How do we know God's love for us is unchangeable?

In the sermon, it's emphasized that despite the church's periods of slumber and indifference, Christ's love remains steadfast and unchanging. This is illustrated through the affectionate titles He bestows upon her: 'my beloved', 'my sister', 'my love', 'my dove', and 'my undefiled'. Each of these names signifies an enduring relationship and an everlasting love. Even when we fail or grow cold, Christ's commitment to His people never falters. Our assurance rests not in our performance but in His faithfulness, solidified by His covenant promises and acts of grace.