What do verses 18 to 19 in Psalm 34 mean?

Section 17 "I call him with my mouth and my tongue calls him high." Ask the Lord first, then praise his name. Section 18- 19 "If I pay attention to sin in my heart, the Lord will not listen. But god really heard; He listened to my prayer. " Inner guilt is the biggest obstacle to prayer. If people listen to the devil, God will certainly not listen to their prayers. If they don't obey God's command, God won't listen to their cry. If you focus on sin, you will naturally not pay attention to God's word. If you love sin, you won't love the Holy Spirit. Whether God listens to the prayers of believers depends on what he likes in his heart, whether he loves God or hates sin. Believers know that God has heard his prayer, so they can rest assured that they can get great comfort and peace before God. 20. The poem "Praise God; He didn't refuse my prayers or let his love leave me. " This is what it's like to live in God's love, and the result is full of praise.