It is not uncommon for skeptics to suppose that Christians are irrational to believe in a God they cannot “see.” In reality, it is irrational for skeptics to suppose that what cannot be seen does not exist.
First, Christians and skeptics alike recognize black holes, electrons, laws of logic, and the force of gravity despite the fact that all these are unseen. Even the most ardent anti-supernaturalist recognizes the gravity of gravity.
Furthermore, “God’s invisible qualities—his eternal power and divine nature—have been clearly seen, being understood from what has been made, so that men are without excuse” (Romans 1:20). Put another way, the order and the complexity of the universe testify to the existence of an uncaused First Cause.
Finally, Jesus is the image of the invisible God. As such, the incarnation of Christ is the supreme act of God’s self-revelation. Thus, we can experience the power and presence of God in a way that is more fundamentally real than our perceptions of the physical world.
“Now we see but a poor reflection as in a mirror; then we shall see face to face. Now I know in part; then I shall know fully, even as I am fully known.” —1 Corinthians 13:12