What does the Bible say about God's house being a house of prayer?

In Isaiah 56:7, God declares, 'Mine house shall be called a house of prayer for all people.' This illustrates that His house is intended for worship, glorifying Him, and inclusive of all kinds of sinners. The focus here is on God's grace, as His house is not defined by sacrifices but rather by prayer and connection with Him. Through Christ, who embodies our access to God, we are invited into this sacred communion, breaking down barriers that once kept sinners from Him, as seen in the gathering of both Jews and Gentiles mentioned in Isaiah.