Ecclesiastes 1:1; Ecclesiastes 1:12; Ecclesiastes 1:16; Ecclesiastes 2:7; Ecclesiastes 2:9

1 The words of the Preacher, the son of David, king in Jerusalem.
12 I, the Preacher, have been king over Israel in Jerusalem.
16 I said to myself, "Behold, I have magnified and increased wisdom more than all who were over Jerusalem before me; and my mind has observed a wealth of wisdom and knowledge."
7 I bought male and female slaves and I had homeborn slaves. Also I possessed flocks and herds larger than all who preceded me in Jerusalem.
9 Then I became great and increased more than all who preceded me in Jerusalem. My wisdom also stood by me.