"Therefore you have no excuse, whoever you are, when you judge others; for in passing judgment on another you condemn yourself, because you, the judge, are doing the same things. You say, 'We know that God's judgment on those who do such things is by truth.'"
In this passage, Paul addresses the judgment and hypocrisy among the people. He warns against judging others while ignoring one's faults and shortcomings.
When we judge others, Paul says we condemn ourselves because we are guilty of the same things. This is because we all have flaws and make mistakes, and it is not our place to judge others without examining our own lives and behaviors.
The passage also refers to the idea that God's judgment is by truth. This means God's decision is based on what is right and just, not personal biases or prejudices.
The message of Romans 2:1-2 is to encourage humility and self-reflection before judging others and to trust in God's righteous judgment.