Psalms 45:17 - Matthew Poole's English Annotations on the Holy Bible

As he began the Psalm with the celebration of the king's praises, so now he endeth with it, and adds this important circumstance, that this nuptial song should not only serve for the present solemnity, as others of that kind do, but that it should be remembered and sung in all successive generations; which plainly showeth that it was not composed upon such a slight and transitory occasion as that of Solomon's marriage with Pharaoh's daughter, which was soon forgotten, and the Israelites had little cause to remember it with any satisfaction; but upon that great and glorious and everlasting marriage between Christ and his church, of which this is most properly and literally verified.