So says Calvin, in his comments on Peter’s words in Acts 1.21, after noting the requirement that anyone who would claim an apostolic office must have seen by autopsy (in the Greek sense of αὐτοψία, “seeing with one’s own eyes”) the risen Jesus:

He nameth the resurrection, not because they must bear witness thereof alone; but because, first, under this is comprehended the preaching of the death of Christ; secondly, because we have the end of our redemption therein, and the accomplishment thereof, and also it bringeth with it the celestial government of Christ, and the power of the Spirit in defending his, in establishing justice and equity, in restoring order, in abolishing the tyranny of sin, and in putting to flight all the enemies of the Church. Let us know, therefore, that those things are not excluded by this word which are necessarily knit together. Nevertheless, let us note that the resurrection is here named before other things, as being the chief point of the gospel, as also Paul teacheth, (1 Corinthians 15:17.)