'Composed' in the Bible

{To the chief Musician. Upon Shoshannim. Of the sons of Korah. An instruction; a song of the Beloved.} My heart is welling forth with a good matter: I say what I have composed touching the king. My tongue is the pen of a ready writer.

Surely I have restrained and composed my soul, like a weaned child with its mother: my soul within me is as a weaned child.