My Notes Authors Matthew Henry - Commentary on the Whole Bible After the promises of the taking away of sin, here follow promises of the taking away of trouble; for when the cause is removed the effect will cease. What makes a people holy will make them happy of course. The precious promises here made to the purified people were to have their full accomplishment in the comforts of the gospel, in the hope, and much more in the enjoyment, of which, they are here called upon, 1. To rejoice and sing (v. 14): Sing, O daughter of Zion! sing for joy; Shout, O Israel! in a holy transport and exultation; be glad and rejoice with all the heart; let the joy be inward, let it be great. Those that love God with all their heart have occasion with all their heart to rejoice in him. It was promised (v. 13) that their sins should be mortified and their fears silenced, and then follows, Sing and rejoice. Note, Those that reform have cause to rejoice, whereas Israel cannot rejoice for joy as other people, while she goes a whoring from her God. God’s promises, applied by faith, furnish the saints with constant and abundant matter for joy; they are filled with joy and peace in believing them. 2. To throw off all their discouragements (v. 16): In that day it shall be said to Jerusalem (God will say it by his prophets, by his providences, their neighbours shall say it, they shall say it to one another), “Fear thou not, be not disposed to fear, do not easily admit the impressions of it; when things are bad, fear not their being worse, but hope they will mend; frighten not thyself upon every occasion. Let not thy hands be slack or faint; wring not thy hands in despair; drop not thy hands in despondence; disfit not thyself for thy work and warfare by giving way to doubts and fears. Pluck up thy spirits, and, in token of that, lift up thy hands, the _hands that hung down, _Heb. xii. 12; Isa. xxxv. 3. Lift up thy hands in prayer to God; lift up thy hands to help thyself.” Fear makes the hands slack, but faith and hope make them vigorous, and the joy of the Lord will be our strength both for doing and suffering.