In the days when he was in the flesh, he offered prayers and supplications with loud cries and tears to the one who was able to save him from death, and he was heard because of his reverence.
They were singing [what seemed to be] a new hymn before the throne, before the four living creatures and the elders. No one could learn this hymn except the hundred and forty-four thousand who had been ransomed from the earth.
So what is to be done, brothers? When you assemble, one has a psalm, another an instruction, a revelation, a tongue, or an interpretation. Everything should be done for building up.
So what is to be done? I will pray with the spirit, but I will also pray with the mind. I will sing praise with the spirit, but I will also sing praise with the mind.