Historians say the Atomic Age began on July 16, 1945, when the first nuclear weapon was detonated in a remote desert of New Mexico. But long before the invention of anything that could even see these tiny building blocks of the universe, the Greek philosopher Democritus (c. 460 bc–370 bc) was exploring the existence and power of the atom. Democritus comprehended more than he could see, and atomic theory was the result.

The Scriptures tell us that the essence of faith is embracing what can’t be seen. Hebrews 11:1 affirms, “Now faith is confidence in what we hope for and assurance about what we do not see.” This assurance is not the result of wishful or positive thinking. It is confidence in the God we cannot see but whose existence is the most real reality in the universe. His reality is displayed in His creative works (Psalm 19:1) and made visible by revealing His invisible character and ways in His Son, Jesus, who came to show the Father’s love to us (John 1:18).

This is the God in whom “we live and move and have our being,” as the apostle Paul put it (Acts 17:28). As such, “we walk by faith, not by sight” (2 Corinthians 5:7). Yet we do not walk alone. The unseen God walks with us every step of the way.