In Psalm 14: 1-5, the author quoted the scripture in Genesis, describing how God created the world and human beings and endowed them with wisdom and life. Then, the author points out that Israel is God's chosen people, and they were chosen because their ancestors Abraham and Isaac believed in God and kept his commandments and wills.
In Psalm 14:6-7, the author emphasizes the special position and responsibility of the Israelis. They are endowed with God's laws and commandments, so they should abide by them and pass them on to the next generation. At the same time, the author also calls on Israel to pursue justice and compassion, because this is God's will.
In the psalm 14:8- 10, the author emphasizes the salvation of Israel and the power of God. They were saved from pain and death because God had the strength and wisdom to save them. In addition, the author also points out that God is unique, and he is the master of all things, so Israel should fear him and obey his orders.
Generally speaking, the central idea of Psalm 14 is God's creation, choice and salvation. It emphasizes Israel's special position and responsibility, as well as God's power, wisdom and love. At the same time, it also calls on Israel to pursue justice and compassion, fear God and obey his orders.