1 Thessalonians 4:5
not in passionate lust, as the [unconverted] Gentiles, who do not know God, do.
2 Thessalonians 1:8
He will inflict punishment on those people who do not know God [as Savior], and on those who do not obey the Gospel message of our Lord Jesus.
John 17:25
Righteous Father, the world does not know you but I know you, and these men know that you sent me.
Acts 17:23
For as I traveled along [your streets] and observed what you are worshiping, I saw an altar with the inscription: [DEDICATED] TO AN UNKNOWN GOD. So, what you are worshiping ignorantly is what I am telling you about.
1 Corinthians 15:34
Come to your senses; do what is right and stop sinning. Some of you do not know God [i.e., in a personal way]. I am saying this to make you ashamed.