3:1-5 We have here an account of the temptation wherewith Satan assaulted our first parents, and which proved fatal to them. And here observe, The tempter, the devil in the shape of a serpent. Multitudes of them fell; but this that attacked our first parents, was surely the prince of the devils. Whether it was only the appearance of a serpent, or a real serpent, acted and possessed by the devil, is not certain. The devil chose to act his part in a serpent, because it is a subtle creature. It is not improbable, that reason and speech were then the known properties of the serpent. And therefore Eve was not surprised at his reasoning and speaking, which otherwise she must have been. That which the devil aimed at, was to persuade Eve to eat forbidden fruit; and to do this, he took the same method that he doth still.
1. He questions whether it were a sin or no, Ge 3:1,2. He denies that there was any danger in it, Ge 3:4.
3. He suggests much advantage by it, Ge 3:5. And these are his common topics. As to the advantage, he suits the temptation to the pure state they were now in, proposing to them not any carnal pleasure, but intellectual delights. Your eyes shall be opened - You shall have much more of the power and pleasure of contemplation than now you have; you shall fetch a larger compass in your intellectual views, and see farther into things than now you do. You shall be as gods - As Elohim, mighty gods, not only omniscient but omnipotent too: You shall know good and evil - That is, everything that is desirable to be known. To support this part of the temptation, he abuseth the name given to this tree. 'Twas intended to teach the practical knowledge of good and evil, that is, of duty and disobedience, and it would prove the experimental knowledge of good and evil, that is, of happiness and misery. But he perverts the sense of it, and wrests it to their destruction, as if this tree would give them a speculative notional knowledge of the natures, kinds, and originals of good and evil. And, All this presently, In the day you eat thereof - You will find a sudden and immediate change for the better.

Genesis 3:5 Parallel Commentaries

The God of Nature (Preached During a Wet Harvest. )
PSALM cxlvii. 7-9. Sing unto the Lord with thanksgiving; sing praise upon the harp unto our God: who covereth the heaven with clouds, who prepareth rain for the earth, who maketh grass to grow upon the mountains. He giveth to the beast his food, and to the young ravens which cry. There is no reason why those who wrote this Psalm, and the one which follows it, should have looked more cheerfully on the world about them than we have a right to do. The country and climate of Judea is not much superior …
Charles Kingsley—The Water of Life and Other Sermons

The Protevangelium.
As the mission of Christ was rendered necessary by the fall of man, so the first dark intimation of Him was given immediately after the fall. It is found in the sentence of punishment which was passed upon the tempter. Gen. iii. 14, 15. A correct understanding of it, however, can be obtained only after we have ascertained who the tempter was. It is, in the first place, unquestionable that a real serpent was engaged in the temptation; so that the opinion of those who maintain that the serpent is only …
Ernst Wilhelm Hengstenberg—Christology of the Old Testament

His Past Work.
His past work was accomplished by Him when he became incarnate. It was finished when He died on Calvary's cross. We have therefore to consider first of all these fundamentals of our faith. I. The Work of the Son of God is foreshadowed and predicted in the Old Testament Scriptures. II. The incarnation of the Son of God. III. His Work on the cross and what has been accomplished by it. I. Through the Old Testament Scriptures, God announced beforehand the work of His Son. This is a great theme and one …
A. C. Gaebelein—The Work Of Christ