10. An image of this we have in a straying sheep. If it but hear at a distance the voice of the shepherd, it starts back immediately, and returns to him. And how willingly would the lost sinner follow the voice of his Shepherd, if sin had not so perverted him, as to reduce him lower than the very beasts in stupidity and dulness! Of this indeed the prophet complains: “The ox knoweth his owner, and the ass his master’s crib: but Israel doth not know, my people doth not consider.” Isa. 1:3. “Shall they fall,” asks another prophet, “and not arise? Shall he turn away, and not return? The stork in the heaven knoweth her appointed times, and the turtle, and the crane, and the swallow, observe the times of their coming: but my people know not the judgment of the Lord.” Jer. 8:4, 7. 11. We ought, therefore, most fervently to implore the Lord, not to withdraw from us his gracious assistance, without which we must certainly go astray. For since sin and the old Adam constantly abide in our corrupt flesh and blood, we have need of daily, yea, hourly supplies of grace, for repressing the tyranny of sin, and for nourishing the life of God within us. The grace of God is the life of our soul, as the soul is the life of the body. And as the life of the body, without the free enjoyment of the air, must soon be extinct; so the vital flame of the inward life will speedily languish, without a daily supply of grace to support it. For this reason Solomon prayed: “The Lord our God be with us; let him not leave us, nor forsake us; that he may incline our hearts unto him, to walk in all his ways.” 1 Kings 8:57. 12. This is a lesson which ought not to be learned in a light and general manner, but by a close and practical application be brought home to every one in particular. Let, therefore, every one look into his own heart and seek its renewal, that so all may be reformed in time. Let us remember that comfortable exhortation, and the promise annexed thereto: “Seek ye the Lord while he may be found; call ye upon him while he is near.” Isa. 55:6. “And ye shall seek me, and find me, when ye shall search for me with all your heart, saith the Lord.” Jer. 29:13.