The Fifth Commandment - God's gift of life
You shall not kill. What does this mean? We should fear and love God that we do not hurt or harm our neighbor in his body, but help and support him in every physical need.
From the Explanation
The living but unborn are persons in the sight of God from the time of conception. Since abortion takes a human life, it is not a moral option except to prevent the death of another person, the mother.
Jeremiah 1:5 - Before AI formed you in the womb I knew you, before you were born I set you apart.
Psalm 139:16 - Your eyes saw my unformed body. All the days ordained for me were written in Your book before one of them came to be.
From Luther's Small Catechism, 1986 edition, Concordia Publishing House