Scripture plainly teaches God's foreknowledge: the prophets are its witnesses (Tertullian)
It is astonishing that people who grant Scripture divine authority can persuade themselves of this. Nothing is gathered more plainly from Scripture than that God knew beforehand every future thing, as the prophecies recorded in it make clear.
As Tertullian neatly puts it, 'God's foreknowledge has as many witnesses as God has made prophets.' The prophets, inspired by God, could not have foretold things that happened only many ages later and were done freely by human beings unless those things were known to God from eternity.
Latin
II. Sed mirum est homines divinam authoritatem Scripturae tribuentes, hoc in animum inducere posse. Nihil enim evidentius ex Scriptura colligitur, quam Deum futura quaelibet praenosse, quod manifestum faciunt quae in Scripturis habentur Prophetarum praedictiones. Nam ut scite Tertullianus, Praescientia Dei tot habet testes, quot Deus fecit Prophetas. Neque enim Prophetae potuerunt, inspirante Deo, ea praedicere quae post multa demum secula contigerunt, & ab hominibus libere sunt facta, nisi quae talia sunt ab aeterno Deo nota sunt.