Baron cites Fonseca's two conclusions: nothing predefined before foreknowledge; concurrence decreed after it (Adam)
Baron there cites two conclusions of Fonseca which, by his own account, strike him as especially helpful for showing that God's providence and the freedom of human choice agree. First: none of our free acts was predefined from eternity prior to every foreknowledge of them.
He glosses this as follows. Until God had foreknown or foreseen in which direction human wills would turn, were this or that occasion put to them, he neither willed absolutely that the will should elicit one set of actions over another, nor decreed to concur in eliciting one set rather than another.
Second: once God, as we must conceive it, had foreseen the direction our wills would take when given this or that occasion, he decreed from eternity to concur with them at the relevant times in eliciting precisely the actions he saw they would turn toward.
Thus, to take an example, God foresaw from eternity that Adam, if tempted by his wife, would desire the fruit, and for that reason decreed to concur with Adam in eliciting that desire.
Latin
IV. Nam eo in loco proponit duas conclusiones Fonsecae quas dicit sibi maxime utiles videri ad stabiliendam concordiam Providentiae Divinae, & libertatis arbitrii humani. Prior est quod ante omnem praescientiam actuum liberorum eorum nullus fuit ab aeterno praedefinitus. Quorum verborum, inquit, hic sensus est, Antequam Deus praescivit, vel praevidit in quam partem humanae voluntates inclinaturae essent, si hae vel illae occasiones iis offerrentur, non absolute voluit voluntatem elicere has actiones potius quam illas, neque decrevit concurrere ad eliciendas has actiones potius quam illas. Secunda conclusio est, Postquam Deus secundum nostrum concipiendi modum praevidit in quam partem inclinaturae essent nostrae voluntates, cum hae aut illae occasiones iis offerrentur, ab aeterno decrevit cum voluntatibus nostris concurrere ad eliciendas, in hoc vel illo tempore, has vel illas actiones, in quas voluntates inclinaturas praevidebat. Exempli causa, Deus ab aeterno praevidit Adamum, si tentaretur ab Uxore, appetiturum pomum, & propterea decrevit concurrere cum Adamo ad eliciendam appetitionem pomi.