Mathew 6:6 But you, when you pray, go into your room, and when you have shut your door, pray to your Father.......
OK It is right and appropriate to pray to the Father directly; the Lord’s Prayer clearly shows that.
However, just because we are permitted to pray, and even commanded to pray to the Father, doesn’t mean that we are not permitted to pray to the Son.
Some might say that prayers of praise to Jesus are legitimate while prayers of petition are not. I will argue that Jesus accepted and still accepts both kinds of prayer.
According to the apostle Paul, New Testament Christians were everywhere praying to Jesus. “Paul. . . to the church of God in Corinth, to those sanctified in Christ Jesus and called to be holy, together with all those everywhere who call on the name of our Lord Jesus Christ—their Lord and ours (1 Corinthians 1:1–2).”
It appears that Paul includes himself among those who called upon the name of Jesus. These prayers directed to Jesus were universal. And the present tense of “call” suggests that the prayers were on-going.
Also, Paul prayed to Jesus when he “besought the Lord” to remove his thorn in the flesh (2 Corinthians 12:8). Why do we believe that the reference to “the Lord” here refers to Jesus instead of the Father? In the Pauline epistles, the term “Lord” (kurios) usually signifies Jesus,6 while “God” usually denotes to the Father. And look at the response of Paul when the Lord said to him, “[My] strength is made perfect in your weakness” (2 Corinthians 12:9).
Paul tells us that he would glory in his weakness that the “power of Christ” (the Lord) would be revealed in him. So the referent for “the Lord” is Jesus. Paul prayed to Jesus, and Jesus responded. Notice that these were prayers of petition, not praise. These were not spontaneous petitions or petitions given in response to the voice of the Lord or a vision, but a prayer prayed three times, as Paul persisted in his request to Jesus. If it were inappropriate for someone to offer supplication to Jesus, Paul would not have asked Jesus three times to answer a specific request. Jesus did not rebuke Paul for praying the prayer, but He did inform Paul that he was better off without the request being granted.
Furthermore, In 2 Thessalonians 2:16–17, Paul blessed the Thessalonians with these words: “May our Lord Jesus Christ himself and God our Father. . . encourage your hearts and strengthen you in every good deed and word.”
Even though this benedictory prayer is in a different form than other prayers, it implies a request to Jesus (and the Father), and this suggests the legitimacy of prayer to Jesus.7 Paul expected Jesus to answer this request. A similar benedictory prayer (invoking the name of Jesus) is found in 1 Thessalonians 3:11–14.
In the Gospels, Jesus was worshipped, and He accepted it (John 9:38). Surely this involved verbal communication to Jesus or prayer. The Gospels are not the only place where worship of Jesus occurs. The angels are told to worship Jesus.
There is worship of Jesus (the Lamb) in Revelation by both angels and humans (Revelation 5:8–13).
Since all three members of the Trinity are God, then worship is due to each of them, collectively and individually, because of the nature of the Trinity. Worship involves praise and adoration. It would be wrong to discourage people from addressing each member of the Trinity in praise and adoration.