It seems to me that one of the great spiritual dangers we face is the temptation to rely on yesterday’s belief systems while missing what God is doing right in front of us. We cling to the categories that once made sense, the patterns that once felt safe, and the interpretations that once held our world together. And then, when God moves in a new way, we get caught off guard. The Bible speaks to this tension more often than we realize. In fact, it is one of the most consistent patterns in Scripture: God moves, people cling to the past, and the very ones who should recognize His work are the ones who miss it. You can see this tension clearly in Israel’s story. In Isaiah 43, God reminds the people of the Exodus — the defining miracle of their national identity — and then says something startling: “Forget the former things; do not dwell on the past. See, I am doing a new thing.” God is not dismissing the Exodus. He is warning them that if they cling too tightly to yesterday’s revelation, they will fail to recognize today’s. The God who parted the sea is still moving, but He is not obligated to repeat Himself. Israel’s memory of God was accurate, but their expectations were too small. They were prepared for the God of yesterday, not the God of right now. This same tension reaches its peak in the Gospels. Jesus arrives as the fulfillment of every promise, yet the very people who studied those promises most carefully are the ones who miss Him. The Pharisees expected a Messiah who fit their system, so when Jesus healed on the Sabbath, ate with sinners, or redefined purity, they concluded He could not be from God. Nazareth expected the carpenter’s son, so they could not see the Messiah standing in their synagogue. Even the disciples expected a political kingdom, so they were constantly surprised by a Messiah who chose a cross instead of a throne. Jesus finally says to them, “You know how to interpret the sky, but you cannot interpret the signs of the times.” In other words: you are experts in yesterday’s patterns, but blind to today’s movement. And the pattern does not stop with the resurrection. The early church wrestles with this same tension. The book of Acts is essentially a story of God moving ahead of His people. The Spirit falls on Gentiles before anyone is ready. Peter is stunned. The church in Jerusalem is stunned. Their categories explode. Philip is sent to Samaria — a place Jews avoided — only to discover that God was already working there. Paul is called to the Gentiles, something no one expected and many resisted. Every time, the sequence is the same: God moves, people are surprised, and the systems they built must either expand or break. Jesus Himself gives us the clearest metaphor for this tension when He speaks of old wineskins and new wine. Old wineskins represent yesterday’s expectations, categories, and systems. New wine represents God’s fresh movement. Jesus’ point is not that the old was wrong; it is that the old is insufficient for what God is doing next. If we cling to the old container, we will lose both the container and the wine. The only way to receive what God is doing now is to let Him reshape the vessel of our understanding. The Bible’s consistent warning is not that God stops speaking. The warning is that we stop listening because we think we already know how God works. We assume the next move of God will look like the last one. We assume the next chapter of our spiritual life will resemble the previous one. We assume the next answer will fit the categories we already trust. And in doing so, we risk missing the God who refuses to be boxed in by our expectations. This is the tension I feel in my own life: the pull toward what is familiar and the invitation toward what is new. Faith is not nostalgia. Faith is not the preservation of yesterday’s insights. Faith is the courage to stay awake to the God who is always moving, always surprising, always calling us forward. The God of Scripture is not static. He is not a museum piece. He is the living Lord who steps into human history again and again, often in ways that unsettle the very people who claim to know Him best. If Scripture teaches us anything, it is this: God is always faithful, but He is rarely predictable. And if we cling too tightly to yesterday’s belief systems, we may find ourselves standing in the presence of God’s new work without the eyes to see it. The invitation is not to abandon the past, but to hold it with open hands — grateful for what God has done, but ready for what He is doing now.

© 2026 H. Duane Black. All rights reserved.