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cf., Sent.I.D40.Q3; QDeVer.Q6.A3; QXI.Q3.A1; QXII.Q3
From here, we more on to the third part of this question, i.e., the certainty of predestination.Â
First, it is asked whether predestination is certain. Now, the question is not whether Predestination is certain quoad nos (i.e., "to us") but whether Predestination is certain quoad se (in itself).Â
For, according to the Council of Trent, one can only have a moral certainty of their own predestination (which we will covered in its proper place).Â
The difficulty that spurns this question is a supposed contradiction between, 1. The infallibility of the effect of predestination, and 2. The freedom of the individual predestined.Â
Yet, as St. Thomas demonstrates, this contradiction is merely one of appearance, not real.Â