1 Corinthians 15:3

For I delivered unto you first of all
Not only in the first place as to order; but among the chief and principal things, as the words will bear to be rendered, this was insisted on in his ministry; this was one he after relates, even a crucified Christ, or the doctrine of his dying for the sins of his people; and which he mentions to lead on to his resurrection; which he meant to improve, and does improve, in a very strong manner, in favour of the resurrection of the saints. This doctrine of a crucified Saviour, which he at first determined only to make known among them, and did make known, was what he fully and faithfully delivered to them, as he had received it:

that which also I received;
not from men, but from Christ; for from him he had the doctrines of the Gospel, as well as the ordinances of it; and he delivered nothing to be believed and practised, but what he had received, and which ought to be the practice and conduct of every Gospel minister; whatever they have received they should deliver, and nothing else: and especially the following important doctrine,

how that Christ died for our sins according to the Scriptures;
that is, of the Old Testament, the writings of Moses, and the prophets, according to Scripture promises, Scripture types, and Scripture prophecies; particularly ( Genesis 3:15 ) ( Psalms 22:1-31 ) ( Isaiah 53:1-12 ) ( Daniel 9:24-27 ) which declare that his heel was to be bruised, that he should be brought to the dust of death, should pour out his soul unto death, and be stricken and cut off in a judicial way, and that for sins; not his own, but for the sins of his people, in order to atone for them, procure the pardon of them, take them away, make an end of them, and abolish them; all which he has done, as the Gospel declares, and the apostle affirms; and thereby was accomplished what Moses and the prophets did say should come to pass. Every promise, type, and prophecy recorded in the law, in the prophets, and in the psalms, concerning his sufferings and death, had their fulfilment in him; nothing was more clearly prefigured and foretold, and nothing more punctually and fully answered.