Now the word of the Lord came to me, saying, 'Before I formed you in the womb, I knew you, and before you were born, I consecrated you; I appointed you a prophet to the nations.’
Jeremiah 1:4-5
Isaiah similarly writes with the same pattern of thought, saying:
"The Lord called me from the womb, from the body of my mother he named my name."
Isaiah 49:1b