Psalms 81:6

All the worship we can render to the Lord is beneath his excellences, and our obligations to him, especially in our redemption from sin and wrath. What God had done on Israel's behalf, was kept in remembrance by public solemnities. To make a deliverance appear more gracious, more glorious, it is good to observe all that makes the trouble we are delivered from appear more grievous. We ought never to forget the base and ruinous drudgery to which Satan, our oppressor, brought us. But when, in distress of conscience, we are led to cry for deliverance, the Lord answers our prayers, and sets us at liberty. Convictions of sin, and trials by affliction, prove his regard to his people. If the Jews, on their solemn feast-days, were thus to call to mind their redemption out of Egypt, much more ought we, on the Christian sabbath, to call to mind a more glorious redemption, wrought out for us by our Lord Jesus Christ, from worse bondage.

I removed his shoulder from the burden. Israel was the drudge and slave of Egypt, but God gave him liberty. It was by God alone that the nation was set free. Other peoples owe their liberties to their own efforts and courage, but Israel received its Magna Charta as a free gift of divine power. Truly may the Lord say of everyone of his freed men, I removed his shoulder from the burden. His hands were delivered from the pots. He was no longer compelled to carry earth, and mould it, and bake it; the earth basket was no more imposed upon the people, nor the tale of bricks exacted, for they came out into the open country where none could exact upon them. How typical all this is of the believer's deliverance from legal bondage, when, through faith, the burden of sin glides into the Saviour's sepulchre, and the servile labours of self righteousness come to an end for ever.