Rom 1:21, 2:15, 2Cor 4:6 | ESV | STEP | For although they knew God , they did not honor him as God or give thanks to him, but they became futile in their thinking , and their foolish hearts were darkened .

Romans 1:21

21 For although they knew God, they did not honor him as God or give thanks to him, but they ^abecame futile in their thinking, and their foolish hearts were darkened.

Romans 2:15

15 They show that the work of the law is ^bwritten on their hearts, while their conscience also bears witness, and their conflicting thoughts accuse or even excuse them

2 Corinthians 4:6

6 For God, who said, ^c“Let light shine out of darkness,” ^dhas shone in our hearts to give ^ethe light of the knowledge of the glory of God in the face of Jesus Christ.