Psalm 45:1 in the King James Version
My heart is inditing a good matter: I speak of the things which I have made touching the king: my tongue is the pen of a ready writer.
Context
1 My heart overflows with a noble theme. I recite my verses for the king. My tongue is like the pen of a skillful writer.
2 You are the most excellent of the sons of men. Grace has anointed your lips, therefore God has blessed you forever.