Your question is valid, however, it is based on the incorrect assumption that some people “don’t know”.
While C.S.Lewis addresses this topic fully in many discourses, here’s what God’s Word says. All people, from the beginning of time, are without excuse. God has made Himself plain to them. Everyone knows, but in their desire to be evil, they reject God and suppress the truth they already know. The very creation itself testifies to all of the Creator.
Romans 1:18-20
“The wrath of God is being revealed from heaven against all the godlessness and wickedness of people, who suppress the truth by their wickedness, since what may be known about God is plain to them, because God has made it plain to them. For since the creation of the world God’s invisible qualities—his eternal power and divine nature—have been clearly seen, being understood from what has been made, so that people are without excuse.”
Submitted to you respectfully...
So beautifully stated.
Thank you.
And thank You Lord.
Tatt