How do we know that God answers the prayers of His elect?

In Luke 18:7, Jesus poses the rhetorical question, 'And shall not God avenge His own elect, which cry day and night unto Him?' This provides a strong assurance that God is attentive to the prayers of His chosen people. The promise is not only that He hears them but also that He will respond decisively, demonstrating His faithfulness to His elect. Furthermore, the scripture contends that all the promises of God are 'Yea' and 'Amen' in Christ, highlighting that our assurance in prayer is rooted in God's unchanging nature. Therefore, the consistent cry of the elect indicates their faith, which God honors by responding to their petitions.