Yeah, if you quote mined, the bible can justify anything. Jesus also said that he would grant any prayer that glorified the father. So which is It?
If you had the ability to discearn you would not murmer. Your use of relativism is just another another way of murmering....Complain that I "quote mine". Complain "which is it?" This is not a question asked for a resolution, but one that puts forth angst.
Also, IMHO there is no contention between granting prayer and glorifying the Father. You forget the Lord's Prayer for us already teaches us how to pray. To God be the glory forever.