From God’s Moral Government of Love:

Neither Luther nor Calvin, however, made pre-destination the central concern of their theologies. Luther was quick to say that pre-destination only had to do with the hidden God, the Deus Absconditus, and that Christians should focus on the choices and grace that the revealed God has promised to all. Likewise, Calvin did not advocate “double predestination,” where God creates some men to save them, and creates others with the intention of damning them. This stern doctrine was a later addition by his successors in Geneva, Theodore Beza and others.

Lutheranism is not known for its strict doctrines of election and sovereignty, largely because of the influence of Melanchthon. Also a first generation reformer, Melanchthon was willing to allow the puzzle of divine foreknowledge and human freedom to go unsolved, rather than insist that there was no free will. Due to Melanchthon’s influence, Lutheranism took a more moderate path in relation to pre-destination, with a general rejection of notions of double predestination and some openness to human choice.