'Learn' in the Bible

Take note, I will make those of the synagogue of Satan, who say that they are Jews and are not, but lie—I will make them come and bow down at your feet and make them know [without any doubt] that I have loved you.

And they sang a new song before the throne [of God] and before the four living creatures and the elders; and no one could learn the song except the hundred and forty-four thousand who had been purchased (ransomed, redeemed) from the earth.