John Trapp on Matthew 27:51

Verse 51. The vail of the Temple was rent] To shew than there was an end of the Leviticall liturgy; and that now there was free and open accesse for all Saints to the throne of Gods grace, for the vail was a figure of the spirituall covering which was before the eyes of the Church till Christs coming. And the earth did quake] To work a heart-quake in the obstinate Jews, as in some it did: others of them had contracted such an habituall hardnesse, such a hoof upon their hearts, as neither ministry, nor misery, nor miracle, nor mercy, could possibly mollifie. And the rocks rent] So they do, wherever Christ makes forcible entrance into any heart. I will shake all nations, and then the desire of all nations shall come, Hag. 2. 7. A man will never truly desire Christ, till soundly shaken. Gods shaking ends in setling, he rents us, not to ruine, but to refine us.