Why is it significant that all are called to prayer?

Isaiah's declaration that God's house is a 'house of prayer for all people' signifies that prayer is not limited to a select group but is the essence of every believer's relationship with God. This inclusivity means that regardless of past sins or social status, every individual is invited to approach God in prayer, reflecting His grace that transcends human barriers. In a spiritual sense, prayer serves as the lifeline for the believer, affirming that our communication with God is rooted in faith and dependence on Him. It signifies our acknowledgment of His sovereignty and our need for His grace, cultivating a spirit of reverence and worship within the community of faith.