In His love, God has revealed Himself to humanity in three ways: (1) through HIs creation; (2) to His chosen people Israel; and (3) through the Gospel. In Romans 1:16-21, which we discussed last week, we see that because of these revelations, mankind is without excuse. As St. Paul wrote in verse 21: So they are without excuse, 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 senseless minds were darkened.