For by grace we are saved through faith. However, it is faith, not presumption, which pleases God. “Without faith it is impossible to please Him: for he that cometh to God must believe that He is, and that He is a rewarder of them that diligently seek Him” (Hebrews 11:6).
“But faith is in no sense allied to presumption. Only he who has true faith is secure against presumption. For presumption is Satan’s counterfeit of faith. Faith claims God’s promises, and brings forth fruit in obedience. Presumption also claims the promises, but uses them as Satan did, to excuse transgression. Faith would have led our first parents to trust the love of God, and to obey His commands. Presumption led them to transgress His law, believing that His great love would save them from the consequence of their sin. It is not faith that claims the favor of Heaven without complying with the conditions on which mercy is to be granted. Genuine faith has its foundation in the promises and provisions of the Scriptures. DA 126.1
”Often when Satan has failed of exciting distrust, he succeeds in leading us to presumption. If he can cause us to place ourselves unnecessarily in the way of temptation, he knows that the victory is his. God will preserve all who walk in the path of obedience; but to depart from it is to venture on Satan’s ground. There we are sure to fall. The Saviour has bidden us, ‘Watch ye and pray, lest ye enter into temptation.’ Mark 14:38. Meditation [upon GOD’s Word] and prayer would keep us from rushing unbidden into the way of danger, and thus we should be saved from many a defeat.” DA 126.2
May God grant us the faith that saves.