Wilt Thou refrain Thyself for these things, O Lord?
Self-restraint and silence, as applied to God
Self-restraint and silence, as applied to God are common figures for inaction and apparent indifference to the interests, and especially the sufferings, of His people. (J. A. Alexander.)
Jehovah’s mercy
Jehovah’s mercy cannot violently restrain itself longer; it must burst forth, like Joseph’s tears in the recognition scene (Genesis 45:1). (F. Delitzsch, D. D.)