During all this time he was ever keeping a most vigilant eye on his habits and life, and in a diary now begun we find him pulling himself up for every little fault, every loss of temper, every bitter word, every conceited feeling. And he is constantly praying for forgiveness and for strength. He is making progress in theological knowledge, finding, for example, a far higher place in his regard for the atonement of Jesus Christ. A very strong mark of his earnestness is seen in his determination finally to give up his mathematical reading, and devote himself to theology.
His views came to a point after the reading of a book then in vogue--Wilberforce's _Practical View_. Fifteen years after, he described the effect which that book had upon him in a letter to a younger brother. 'When I meet with an inquirer, who, under the impulse of a new feeling, has set himself in good earnest to the business of his eternity, I have been very much in the habit of recommending Wilberforce. This perhaps is owing to the circumstance that I myself experienced a very great transition of sentiment in consequence of reading his work. The deep views he gives of the depravity of our nature, of our need of an atonement, of the great doctrine of acceptance through that atonement, of the sanctifying influences of the Spirit--these all give a new aspect to a man's religion.... But there are other books which might be as effectually instrumental in working the desired change; and in defect of them all there is the Bible, whose doctrines I well remember I then saw in an altogether new light, and could feel a power and a preciousness in passages which I formerly read with heedlessness, and even with disgust.'
We cannot dwell at more length on this most interesting struggle; enough to say that he emerged from it into the joy and peace of believing; he laid hold of Jesus Christ as his only Saviour; entered into conscious reconciliation with God; looked habitually to the Holy Spirit for all sanctifying grace; and counted it his highest honour and delight to be a fellow-worker with God, especially in all that concerned the welfare of his fellow-men. Yet it was always observed of him that while cordially agreeing with evangelical divines in the great essentials of the faith, he would accept of no position which did not commend itself to his own mind as according to Scripture. For a class of men who insisted on very minute orthodoxies, and even questioned his own soundness because he might not agree with them, he used to speak with little patience and less respect.
The change became very apparent in his ministerial work. He threw new ardour into the visitation of his flock and the instruction of the young. His preaching passed into those evangelical lines which formerly he had treated with contempt. Family worship, morning and evening, was regularly conducted in the manse, although sometimes it was a great trial to introduce that much contemned practice when a guest was present who had little sympathy with the evangelical life. A Bible Society was established in the parish, and all the people were exhorted to join it. Strangers flocked to his church, not merely as of old to enjoy his eloquent and impassioned delivery, but for guidance and aid in the service of God. Converts to living Christianity gladdened his heart and aided him in his work. 'Sandy Paterson,' his first convert, became a great and earnest worker among his neighbours, and afterwards, as a city missionary, in the Canongate of Edinburgh, successfully laboured in the slums. With a young gentleman in Dundee, Mr. James Anderson, Chalmers formed a remarkable friendship on the basis of their mutual interest in religion, and in his great humility corresponded with him more like a fellow-student or brother than a spiritual father. And Chalmers himself became an earnest and laborious student of the Bible; and, in order to keep up the glow of his spiritual life, instituted for himself a monthly exercise, in which he reviewed before God the work of the month, and with much confession and thanksgiving, implored the blessing of God on all his work and on all his people.