If in this life only we have hope in Christ, we are of all men most miserable. – 1 Corinthians 15:19
He who shall affirm that Christianity makes men miserable, is himself an utter stranger to it, and has never partaken of its joyful influences. It were a very strange thing indeed, if it did make us wretched, for see to what a position it exalts us! It makes us sons of God. Suppose you that God will give all the happiness to His enemies, and reserve all the mourning for His sons? Shall His foes have mirth and joy, and shall His own home-born children inherit sorrow and wretchedness? Are the kisses for the wicked and the frowns for us? Are we condemned to hang our harps upon the willows, and sing nothing but doleful dirges, while the children of Satan are to laugh for joy of heart? We are heirs of God, and joint-heirs with Christ Jesus. Shall the sinner, who has no part nor lot in Christ, call himself happy, and shall we go mourning as if we were penniless beggars? No, we will rejoice in the Lord always, and glory in our inheritance, for we “have not received the spirit of bondage again to fear; but ye have received the Spirit of adoption, whereby we cry, Abba, Father.” The rod of chastisement must rest upon us in our measure, but it worketh for us the comfortable fruits of righteousness; and therefore, by the aid of the divine Comforter, we will rejoice in the Lord at all times. We are, my brethren, married unto Christ; and shall our great Bridegroom permit His spouse to linger in constant grief? Our hearts are knit unto Him: we are members of His body, of His flesh, and of His bones, and though for a while we may suffer as our Head once suffered, yet we are even now blessed with heavenly blessings in Him. Shall our Head reign in heaven, and shall we have a hell upon earth? God forbid: the joyful triumph of our exalted Head is in a measure shared by us, even in this vale of tears. ~ C.H. Spurgeon
https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/0562.cfm