Charles H. Spurgeon on Psalms 89:32

Then will I visit their transgressions with the rod. Not with the sword, not with death and destruction; but still with a smarting, tingling, painful rod. Saints must smart if they sin: God will see to that. He hates sin too much not to visit it, and he loves his saints too well not to chasten them. God never plays with his rod, he lays it well home to his children, he visits them with it in their houses, bodies, and hearts, and makes them know that he is grieved with their ways. He smites home and chastens their iniquity with stripes, which are either many or few in proportion as the heart is properly affected by them. The rod is a covenant blessing, and is meant to be used. As sin is so frequent, the rod never rests long together; in God's family the rod is not spared, or the children would be spoiled.