Tests And Signs

Non tentabis Dominum Deum tuum Tentare Deum, est se injicere periculo, ut experiatur an Deus miraculo eripere velit: cum ex humana ratione promptum habeat quid facere possit. Neque tentemus Deum, sicut quidam tentaverunt, et perierunt ab exterminatore. Si tamen a Deo offerretur signum: petere possemus et deberemus. Et ideo reprehenditur Achaz cui cum diceretur: Pete tibi signum etc, respondit; Non petam et non tentabo Dominum: sic enim signum petere: non est tentare Dominum Sanctus Albertus Magnus Commentarium In Evangelium Mattheum, Caput IV Source: Here p57

You shall not test the Lord your God. 1 To test God is to cast oneself into peril so that one may find out whether God wishes to save one with a miracle, when it is evident from human reason what it is possible to do. 'We should not test God, as those who tested him and perished by the exterminator.' 2 But if it is matter of receiving a sign from God, we can and should seek. And therefore Achaz was reproved when it was said to him, 'Seek a sign,' and he answered, 'I shall not seek and I shall not test the Lord.' 3 For to seek a sign is not to test God. Saint Albert The Great, Commentary On The Gospel of St Matthew, Chapter 4 1 Mt 18.11 2 1 Corin 10.9-10 3 Isaiah 7.12