I just have one question, how do you know that the person (saint) you are praying to is actually in heaven and if we have Jesus as our intersessor sitting at the right hand of God, why pray to a saint when we are told to come boldly to the thrown of God with our request and petitions?
The life the person lives in this world and the miraculous events that can be proven to occur through that person after passing to eternal life leads to canonization as a saint, to put it simply. As far as why pray to a saint for intercession with our Lord, the saints in Heaven have earned their place before God and may intercede for us where we are still of this sinful world and have not earned the purification they have. Secondly, the Bible teaches we are all to intercede in prayer for each other as well as with the communion of the saints in heaven.
Eph. 3:14-15- we are all one family (“Catholic”) in heaven and on earth, united together, as children of the Father, through Jesus Christ. Our brothers and sisters who have gone to heaven before us are not a different family. We are one and the same family. This is why, in the Apostles Creed, we profess a belief in the “communion of saints.” There cannot be a “communion” if there is no union. Loving beings, whether on earth or in heaven, are concerned for other beings, and this concern is reflected spiritually through prayers for one another.
Eph. 1:22-23; 5:23-32; Col. 1:18,24 - this family is in Jesus Christ, the head of the body, which is the Church.
1 Cor. 12:12,27; Rom. 12:5; Col. 3:15; Eph. 4:4 - we are the members of the one body of Christ, supernaturally linked together by our partaking of the Eucharist.
Rom. 8:35-39 - therefore, death does not separate the family of God and the love of Christ. We are still united with each other, even beyond death.
Matt. 17:3; Mark 9:4; Luke 9:30 - Jesus converses with “deceased” Moses and Elijah. They are more alive than the saints on earth.
Matt. 22:32; Mark 12:27; Luke 20:38 - God is the God of the living not the dead. The living on earth and in heaven are one family.
Luke 15:7,10 – if the angels and saints experience joy in heaven over our repentance, then they are still connected to us and are aware of our behavior.
John 15:1-6 - Jesus is the vine and we are the branches. The good branches are not cut off at death. They are alive in heaven.
1 Cor. 4:9 – because we can become a spectacle not only to men, but to angels as well, this indicates that angels are aware of our earthly activity. Those in heaven are connected to those on earth.
1 Cor. 12:26 - when one member suffers, all suffer. When one is honored, all rejoice. We are in this together as one family.
1 Cor 13:12; 1 John 3:2 - now we see in a mirror dimly, but in heaven we see face to face. The saints are more alive than we are!
Heb. 12:1: we are surrounded by a great glory cloud (shekinah) of witnesses. The “cloud of witnesses” refers to the saints who are not only watching us from above but cheering us on in our race to heaven.
1 Peter 2:9; Rev. 20:6 - we are a royal family of priests by virtue of baptism. We as priests intercede on behalf of each other.