Asaph could legitimately ask God to shame Israel"s enemies in view of God"s promise to Abraham ( Genesis 12:3). However, his ultimate concern was God"s reputation ( Psalm 83:18). [source][source][source]
Prayers based on God"s reputation, His promises, and His past faithfulness are petitions that God will answer. However, He reserves the right to decide the correct time to act. [source][source][source]