Charles H. Spurgeon on Psalms 109:1

Hold not thy peace. How appropriately this phrase is applied to God, with whom to speak is the same as to do; for by his word he made all things. Rightly, therefore, is he said to be silent when he seems not to notice the things which are done by the wicked, and patiently bears with their malice. The Psalmist begs him to rise up and speak with the wicked in his wrath, and thus take deserved vengeance on them; which is as easy for him to do as for an angry man to break forth in words of rebuke and blame. This should be to us a great solace against the wickedness of this last age, which God, our praise, can restrain with one little word. —Wolfgang Musculus.