Yes, this is exactly right. The NT is clear that while the Lord's Prayer is ALWAYS right and proper, in no way are these the only words God is interested in hearing in prayer. For example:
1 John 5:13-15 : 13 I write these things to you who believe in the name of the Son of God so that you may know that you have eternal life. 14 This is the confidence we have in approaching God: that if we ask anything according to his will, he hears us. 15 And if we know that he hears us whatever we ask we know that we have what we asked of him.
This necessarily expands the parameters of approved prayer beyond the four corners of the Lord's Prayer.
INDEED.
Thanks thanks.
But there is only one prayer that the Lord gave us specifically. That is the only God-given Prayer. I think there is a difference between that God-givne Prayer and those we make up.