1 Chronicles 25:5

The king's seer Or prophet. Either he was a prophet as well as a singer; or he is thus called because he prophesied, or praised God, in the sense designed 1 Chronicles 25:1. And he is called the king's seer, because the king took special delight in him; or because he frequently attended the king in his palace, executing his sacred office there, while the rest were employed in the tabernacle. In the words of God To sing such divine songs as were inspired by God to the prophets or holy men of God. To lift up the horn To praise God with the sound of a trumpet, or some other musical instrument made of horn, which, being a martial kind of music, might be most grateful to David's martial spirit: though he was also skilled in other instruments of music which he used in the house of God.