How do we know God follows through on His promises?

God's faithfulness in fulfilling His promises is illustrated throughout Scripture, notably in Genesis 17:1-2, where He reaffirms His covenant with Abram. Here, despite the natural impossibilities of Abram and Sarah conceiving a child at their advanced age, God declares His intention to fulfill His promise. As shown in Romans 4:19, Abram did not waver in his faith, illustrating the certainty of God's word. This steadfastness is rooted in God’s character; He is faithful and cannot lie (Titus 1:2). For believers today, this provides a foundation of hope, knowing that God accomplishes His will and enables us to trust in His written promises.