Abortion Is Against God's Will
God sovereignly chooses who will serve Him, knits them together in their mother's womb and accomplishes His will through His empowering of them through His Holy Spirit.
Abortion is the murder of children, in direct conflict of God's Will. Only His long suffering prevents His justice to be immediately executed on those who do so.
Paul wrote about his calling:
But when God, who set me apart from my mother’s womb and called me by his grace, was pleased 16 to reveal his Son in me so that I might preach him among the Gentiles, my immediate response was not to consult any human being. (Galatians 1: 15-16)