THE WITNESS OF THE SPIRIT AND THE ASSURANCE OF FAITH
You may not perhaps, for the most part, enjoy a strong or clear assurance of your interest in Christ; you may be frequently much exercised whether you are a child of God; and yet you may at times have had a sweet testimony that grace is in your heart.
You may have heard the servants of God so describe the feelings of your soul, so enter into your exercises, and bring forward such evidences of grace, that, in spite of all your unbelief, you were convinced that if these men spake agreeably to the mind of God, which you could not well doubt from the power which accompanied it, you were one of his children; and as you felt this inward witness, your heart was softened and moved within you, and you could not help lifting up your soul in praise and adoration to the God of all your mercies.
You might sink again almost as low as before; but whilst that heavenly feeling lasted, you had a testimony in your conscience that you were a child of God, and could then and there believe that he was your Father and heavenly friend. This text does not, therefore, cut off those who have not reached the full assurance of faith; it does not imply, much less say, that everybody shall be cut off and sent into everlasting perdition who cannot clearly and boldly declare that the Spirit itself beareth witness with their spirit that they are the children of God. On the contrary, it opens its benign arms to everyone who has in any degree or at any time received any deliverance, felt any measure of spiritual consolation, or been favoured with any testimony of his acceptance in the Beloved.
It does not come as a two-edged sword to kill all who do not enjoy the full assurance of faith, but still have felt the power of the truth in their hearts. It does not say to such, “You have neither part nor lot in the matter.” It would rather draw them forward into the sheltering arms of eternal mercy, and encourage them to press on to know more and more of that inward witness which alone can cheer them in hours of darkness and distress, support them upon a dying bed, and enable them to walk without doubt and fear through the gloomy valley of the shadow of death.
“These things have I written unto you that believe on the Name of the Son of God; that YE MAY KNOW that ye HAVE eternal life, and that ye may (continue to) believe on the Name of the Son of God.” [1John 5:13]