It is by a similar act we receive healing from the cross of Christ. It is by an act which springs from a similar state of mind. "Every one that _believeth_,"--that is all that is required of any who would be healed of sin and its attendant miseries. It is a little and an easy thing in itself, but it indicates a great and difficult change of mind. It is so slight and easy an action that the dying can do it. The feeblest and most ignorant can turn in thought to Him who died upon the cross, and can, with the dying thief, say, "Lord, remember me." All that is required is a sincere prayer to Christ for deliverance. But before anyone can so pray, he must hate the sin he has loved, and must be willing to submit to the God he has abandoned. And this is a great change; too difficult for many. Not all these Israelites were healed, though the cure was so accessible. There were those who were already insensible, torpid with the heavy poison that ran through their blood. There were those whose pride could not be broken, who would rather die than yield to God. There were those who could not endure the thought of a life in God's service. And there are those now who, though they feel the sting of sin, and are convulsed and tormented by it, cannot bring themselves to seek help from Christ. There are those who do not believe Christ can deliver them; and there are those to whom deliverance weighted with obligation to God, and giving health to serve Him, seems equally repugnant with death itself. But where, there is a sincere desire for reconcilement with God, and for the holiness which maintains us in harmony with God, all that is needed is trust in Christ, the belief that God has appointed Him to be our Saviour, and the daily use of Him as our Saviour.
In proceeding to make a practical use of what our Lord here teaches, our first duty, plainly, is to look to Him for life. He is exhibited crucified--it is our part to trust in Him, to appropriate for our own use His saving power. We need it. We know something of the deadly nature of sin, and that with the first touch of its fang death enters our frame. We have found our lives poisoned by it. Nothing can well be a fitter picture of the havoc sin makes than this plague of serpents--the slender weapon sin uses, the slight _external_ mark it leaves, but, within, the fevered blood, the fast dimming sight, the throbbing heart, the convulsed frame, the rigid muscles no longer answering to our will. Do we not find ourselves exposed to sin wherever we go? In the morning our eyes open on its vibrating fangs ready to dart upon us; as we go about our ordinary employments we have trodden on it and been bitten ere we are aware; in the evening, as we rest, our eye is attracted, and fascinated, and held by its charm. Sin is that from which we cannot escape, from which we are at no time, nor in any place, secure; from which, in point of fact, no one of us has escaped, and which in every case in which it has touched a man has brought death along with it. Death may not at once appear; it may appear at first only in the form of a gayer and intenser life; as, they tell us, there is one poison which causes men to leap and dance, and another which distorts the face of the dying with a hideous imitation of laughter. Is that not a diseased soul which has no vigour for righteous and self-sacrificing work; whose vision is so dim it sees no beauty in holiness?
Of this condition, faith in God through Christ is the true remedy. Return to God is the beginning of all healthy spiritual life. Faith means that all distrust, all resentment at what has happened in our life, all proud and all despondent thoughts, are laid aside. To believe that God is loving us tenderly and wisely, and to put ourselves unreservedly into His hand, is eternal life begun in the soul.