When God called Abram He promised him descendants and land. “I will make you into a great nation and I will bless you” (Gen 12:2). When Abram settled in the land of Canaan the Lord said “Lift up your eyes from where you are and look north and south, east and west. All the land you see I will give to you and your offspring forever. Go walk through the length and breadth of the land, for I am giving it to you” (Gen 13:14-17). Later the Lord spoke to him in a vision and reassured him of the promise. He told him that his offspring would be impossible to count – like the stars in the sky. And “Abram believed the Lord, and he credited it to him as righteousness” (Gen 15:6).
Then God told him “I am the Lord, who brought you out of Ur of the Chaldeans to give you this land to take possession of it” (Gen 15: 5, 7). And what was Abram’s response? “Oh Sovereign Lord, how can I know . . . ?” (Gen 15:8). From faith to doubt. Sound familiar? It does for me. I will believe God in the morning and be anxious by the afternoon. I can watch God work wonders on my behalf and wonder if He will come through for me in the next crisis. I have read His promises, even written them down, and forgotten them in the firey moment.
But let’s answer Abram’s question, “How can I know . . . ?” First, he was standing on the very land God had promised to give him – “this land” (v. 7). It was the same promise he had made at the beginning of Abram’s journey, “To your offspring I will give this land” (Gen 12:7-italics added). The land on which your sandals are resting, Abram. The land I had you walk through, Abram.
Secondly, because of who made the promise. The Lord, God Most High. The Creator of heaven and earth (Gen 14:22). The Sovereign Lord (Gen 15:2, 8). The One who had called him. The one he had followed all over Arabia. The same God that you can trust to keep His promises to you too. But you have one advantage that Abram didn’t. You have the cross of Jesus Christ. Because God’s ultimate promise of salvation was fulfilled there. God keeps His promises, Beloved. Every. Single. One.