But these people, we must remember, were Christians; they had received the gospel from the Apostle; and, in the gospel, the supreme assurance of the love of God. We need to remind ourselves occasionally that the gospel is good news, glad tidings of great joy. Wherever it comes, it is a joyful sound; it puts a gladness into the heart which no change of circumstances can abate or take away. There is a great deal in the Old Testament which may fairly be described as doubt of God's love. Even the saints sometimes wondered whether God was good to Israel; they became impatient, unbelieving, bitter, foolish; the outpourings of their hearts in some of the psalms show how far they were from being able to rejoice evermore. But there is nothing the least like this in the New Testament. The New Testament is the work of Christian men, of men who had stood quite close to the supreme manifestation of God's love in Jesus Christ. Some of them had been in Christ's company for years. They knew that every word He spoke and every deed He wrought declared His love; they knew that it was revealed, above all, by the death which He died; they knew that it was made almighty, immortal, and ever-present, by His resurrection from the dead. The sublime revelation of Divine love dominated everything else in their experience. It was impossible for them, for a single moment, to forget it or to escape from it. It drew and fixed their hearts as irresistibly as a mountain peak draws and holds the eyes of the traveller. They never lost sight of the love of God in Christ Jesus, that sight so new, so stupendous, so irresistible, so joyful. And because they did not, they were able to rejoice evermore; and the New Testament, which reflects the life of the first believers, does not contain a querulous word from beginning to end. It is the book of infinite joy. We see, then, that this command, unreasonable as it appears, is not impracticable. If we are truly Christians, if we have seen and received the love of God, if we see and receive it continually, it will enable us, like those who wrote the New Testament, to rejoice evermore. There are places on our coast where a spring of fresh water gushes up through the sand among the salt waves of the sea; and just such a fountain of joy is the love of God in the Christian soul, even when the waters close over it. "As sorrowful," says the Apostle, "yet alway rejoicing."