How do we know Christ's love for His people is true?

In John 15:13, it states, 'Greater love hath no man than this, that a man lay down his life for his friends.' Christ demonstrated His love by taking upon Himself the sins of His people, as highlighted in Isaiah 53:4-6, where it reveals that He bore our griefs and carried our sorrows. His sacrificial death is the ultimate testament to His love, fulfilling God's justice while also revealing His mercy. The willingness with which He became a bond servant to pay this debt shows the depth of His commitment to His bride.