For what is known about God is manifest in them. For God has manifested it to them
Other versions
King James Version
Because that which may be known of God is manifest in them; for God hath shewed it unto them. English Standard Version
For what can be known about God is plain to them, because God has shown it to them.New International Version
since what may be known about God is plain to them, because God has made it plain to them.