We know God's love is real because of the promises in Scripture and the spiritual experiences of believers.
The assurance of God’s love is chiefly communicated through His promises as found in Scripture. In Isaiah 40:10-11, we see a vivid depiction of God's tender care, portrayed as a shepherd who carries His lambs and lovingly nurtures them. This relationship mirrors the experience of new Christians who, like infants, may often feel insecure or doubt God's love during their early stages of faith. However, as they grow and internalize the truths of the Gospel, they come to recognize that God's loving kindness is unwavering. Jesus’ affirmation of love for His disciples, such as expressed in His care for John, serves to reassure all believers of their status as cherished children in God's family.
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