Blaise Pascal famously said there’s an “infinite abyss” inside us that only an infinite God can fill. “You have made us for yourself, O Lord,” Augustine prayed, “and our heart is restless until it rests in you.” As David put it, like thirsty people in the desert, our whole being “longs” for God (Psalm 63:1). Surprisingly, however, it isn’t only humans that experience longing. God does too. While the infinite God of the universe needs nothing outside Himself to be fulfilled, the Bible says He “longs” to have us back when we stray (James 4:4-5), and repeatedly says He wants a people to call His own (Exodus 6:7; Hebrews 8:10). For thousands of years this longing has fueled God’s missionary endeavors: sending prophets to win back His straying people and ultimately sending His Son to find His lost sheep (Isaiah 30:18; Luke 19:10). The good news is that in the end, this longing will be fulfilled: “They will be his people, and God Himself will be with them and be their God” (Revelation 21:3). God and human beings will dwell together (v. 2). Humans long for God and no substitute will satisfy. God longs for humans and no substitute will do. So no wonder there’s rejoicing in heaven when one sinner repents (Luke 15:7). When we run to God’s open arms, everyone is fulfilled.