And they said, Believe on the Lord Jesus Christ, and thou shalt be saved, and thy house. – Acts 16:31

Dear hearer, have you faith? Dost thou believe on the Lord Jesus Christ with all thy heart? If so, thou mayest hope to be saved. Ay, thou mayest conclude with absolute certainty that thou shalt never see perdition. Have you faith? …He that has faith has renounced his own righteousness. If thou puttest one atom of trust in thyself thou hast no faith; if thou dost place even a particle of reliance upon anything else but what Christ did, thou hast no faith. If thou dost trust in thy works, then thy works are anti-christ, and Christ and anti-christ can never go together. Christ will have all or nothing; He must be a whole Saviour, or none at all.

The true faith may be known by this, that it begets a great esteem, for the person of Christ. Dost thou love Christ? Couldst thou die for Him? Dost thou seek to serve Him? Dost thou love His people? Have you faith? Oh! answer it, Yes, or No. Leave off saying, “I do not know,” or “I do not care.” Ah! you will care, one day, when the earth is reeling, and the world is tossing to and fro; ye will care when God shall summon you to judgment, and when He shall condemn the faithless and the unbelieving. Oh! that ye were wise-that ye would care now, and if any of you feel your need of Christ, let me beg of you, for Christ’s sake, now to seek faith in Him who is exalted on high to give repentance and remission, and who, if He has given you repentance, will give you remission too. Oh sinners, who know your sins! “Believe on the Lord Jesus, and ye shall be saved.” Cast yourselves upon His love and blood, His doing and His dying, His miseries and His merits; and if you do this you shall never fall, but you shall be saved now, and saved in that great day when not to be saved will be horrible indeed…Lay hold on Him, touch the hem of His garment, and ye shall be healed. May God help you so to do, for Christ’s sake! Amen and Amen. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/0107.cfm