Our God shall come— That is Christ. Now there are three comings of Christ expressed in the Scripture; the first in humility, in our flesh and nature; the last in glory, for the judging of the whole world; and an intermediate coming, in which he was to effect mighty works by the power of his Spirit. The psalm seems to belong most signally to this coming of our Saviour, as also Psalms 96:10-13. He shall not keep silence, means, according to the original, shall not delay. The figurative expressions in the latter part of the verse represent the terrible manner of his coming, and allude to the giving of the law from mount Sinai.
Related Commentaries of Psalms 50:3
Psalms 50:3
3 Our God shall come, and shall not keep silence: a fire shall devour before him, and it shall be very tempestuous round about him.