Hebrews 9:16

For where a testament is: for gives the reason of the Mediator's death, even the putting the called into the possession of the bequeathed inheritance, demonstrated by a common, natural law in all nations of the testament's effect on the testator's death; a testament being a disposition by will nuncupative, or written, of either goods or lands, which are the person's own, to be the right and possession of others after his death, whom he nominateth in it: such in proportion is the new covenant, where God gives freely all spiritual good things with a heavenly inheritance, as legacies to all his called ones in Christ, by this last and best will and testament of his, written in his Scripture instrument, witnessed by the prophets and apostles, sealed by the two sacraments, especially the Lord's supper, Luke 22:20. There must also of necessity be the death of the testator; he who maketh a testament by the law of nature, as of nations, must die before the legatees have any profit by the will; the son and heir inherits not but on the father's death; then is the testament firm and valid, the time being come for the heir's inheriting, and for the will's execution, it being now unalterable; the necessity of which is cleared, Hebrews 9:17.