Charles H. Spurgeon on Psalms 50:5

Gather my saints together unto me. Go, ye swift winged messengers, and separate the precious from the vile. Gather out the wheat of the heavenly garner. Let the long scattered, but elect people, known by my separating grace to be my sanctified ones, be now assembled in one place. All are not saints who seem to be so —a severance must be made; therefore let all who profess to be saints be gathered before my throne of judgment, and let them hear the word which will search and try the whole, that the false may be convicted and the true revealed. Those that have made a covenant with me by sacrifice; this is the grand test, and yet some have dared to imitate it. The covenant was ratified by the slaying of victims, the cutting and dividing of offerings; this the righteous have done by accepting with true faith the great propitiatory sacrifice, and this the pretenders have done in merely outward form. Let them be gathered before the throne for trial and testing, and as many as have really ratified the covenant by faith in the Lord Jesus shall be attested before all worlds as the objects of distinguishing grace, while formalists shall learn that outward sacrifices are all in vain. Oh, solemn assize, how does my soul bow in awe at the prospect thereof!