Psalm 10:3-4 For the wicked boasted of his heart’s desire, and blesseth the covetous, whom the Lord abhorreth. The wicked, through the pride of his countenance, will not seek after God: God is not in all his thoughts.
The wicked unbelieving people respond to God by ignoring Him. They consider themselves and their own thoughts as more important than God or others. What’s in it for me? They even brag about their own desires as being right and good, because they think of themselves first and put God aside. Then they even go so far as to bless the covetous with his self-centered thoughts and desires. And they refuse to seek after God. He is not in their thoughts all the time. Pride prevents them from giving God a thought,
By implication, the righteous believing people fear God, love Him, seek Him, are mindful of Him, and keep Him in their thoughts all day long. They practice the presence of God and seek His kingdom first. This kind of thinking and remembering affects our words and behavior.
The issue is this: David is not just talking about them. He is describing us. The truth is, the believer is both saint and sinner at the same time all the time. And the two struggle with each other. We are the wicked, who forget God; and we are, through faith in Christ, the righteous who remember God. Jesus forgives our thoughtlessness and gives His life that keeps God in mind. The Spirit in us does everything we can to remind us of God in the heart. For this reason, we go to church, attend Bible study, and spend time alone with God in His Word and in repentance.
We may not be able to keep the Lord in our thoughts all the time, but the Gospel reminds us that He is faithfully there all the time, whether we are consciously aware or not.