The very light of nature in man, and the works of God, declare plainly that there is a God;[1] but his word and Spirit only do sufficiently and effectually reveal him unto men for their salvation.[2]
1:
Romans 1:19-20
Psalms 19:1-3
Acts 17:28
2:
1 Corinthians 2:9-10
2 Timothy 3:15-17
Isaiah 59:21