Acts 15:11 But we believe that through the grace of our Lord Jesus Christ we shall be saved, even as they.
A watershed moment took place in salvation history at the Jerusalem conference where the Apostles and elders decided that Gentiles could be saved and come into the Church without being circumcised. The Holy Spirit had shown the early church that both Jews and Gentiles were equally saved by grace.
This is the promise: we are all saved by the grace of Christ. All people, every single person, is saved by the grace of Christ, no matter what race, culture, nationality, language, or religion they are. Anything that separates one human from another does not separate anyone from the love of God. By grace we are saved, and by grace another person is saved when he is told about it and believes.
The grace of Christ is sufficient to save to the uttermost. Nothing that we do, nothing that we say, think, or decide can add to, or contribute to, the all-sufficient grace of Christ to save. Nothing in my hand I bring. Jesus Christ has earned salvation for me, and all others, completely, finally, and forever. His salvation is unconditionally and freely granted to all.
This promise affects our daily lives of prayer. The human in us tends to think that God will hear us if we pray more fervently, fast, give up things, make promises and sacrifices, repent more sincerely, believe more strongly, or do something. But No, God promises to hear our prayers for the same reason He saves us: by the grace of out Lord Jesus Christ. We believe Grace is enough.