What would God be doing as Muslims, Christians and Jews claim to worship the same God, God of Abraham?

Helping His people, His chosen ones, those who believe and follow Jesus as God's son which excludes Muslims and non Messianic Jews. However, the Jews will be restored to Him as it is written. God is not the creator of all religions, otherwise He wouldn't command ...'Do not worship any other false gods or idols, worship the Lord your God and Him only shall you serve' (NIV).