Psalms 98:3

A song of praise for redeeming love is a new song, a mystery hidden from ages and generations. Converts sing a new song, very different from what they had sung. If the grace of God put a new heart into our breasts, it will put a new song into our mouths. Let this new song be sung to the praise of God, in consideration of the wonders he has wrought. The Redeemer has overcome all difficulties in the way of our redemption, and was not discouraged by the services or sufferings appointed him. Let us praise him for the discoveries made to the world of the work of redemption; his salvation and his righteousness fulfilling the prophecies and promises of the Old Testament. In pursuance of this design, God raised up his Son Jesus to be not only a Light to lighten the Gentiles, but the glory of his people Israel. Surely it behoves us to inquire whether his holy arm hath gotten the victory in our hearts, over the power of Satan, unbelief, and sin? If this be our happy case, we shall exchange all light songs of vanity for songs of joy and thanksgiving; our lives will celebrate the Redeemer's praise.

He hath remembered his mercy and his truth toward the house of Israel. To them Jesus came in the flesh, and to them was the gospel first preached; and though they counted themselves unworthy of eternal life, yet the covenant was not broken, for the true Israel were called into fellowship and still remain so. The mercy which endureth for ever, and the fidelity which cannot forget a promise, secure to the chosen seed the salvation long ago guaranteed by the covenant of grace. All the ends of the earth have seen the salvation of our God. Not to Abraham's seed alone after the flesh, but to the elect among all nations, has grace been given; therefore, let the whole church of God sing unto him a new song. It was no small blessing, or little miracle, that throughout all lands the gospel should be published in so short a time, with such singular success and such abiding results. Pentecost deserves a new song as well as the Passion and the Resurrection; let out hearts exult as we remember it. Our God, our own for ever blessed God, has been honoured by those who once bowed down before dumb idols; his salvation has not only been heard of but seen among all people, it has been experienced as well as explained; his Son is the actual Redeemer of a multitude out of all nations. In these three verses we are taught how to praise the Lord.