There is a science of Christianity to be mastered—a science as much deeper, broader, higher than any human science as the heavens are higher than the earth. The mind is to be disciplined, educated, and trained, for we are to do service for God in ways that are not in harmony with inborn inclination. Hereditary and cultivated tendencies to evil must be overcome. Often the education and training of a lifetime must be discarded, that we may become learners in the school of Christ. MHH 263.7
Our hearts must be educated to become steadfast in God. We are to form habits of thought that will enable us to resist temptation. We must learn to look upward. The principles of the Word of God—principles that are as high as heaven, and that compass eternity—we are to understand in their bearing upon our daily life. Every act, every word, every thought, is to be in accord with these principles. All must be brought into harmony with, and subject to, Christ. MHH 263.8
The precious graces of the Holy Spirit are not developed in a moment. Courage, fortitude, meekness, faith, unwavering trust in God’s power to save, are acquired by the experience of years. By a life of holy endeavor and firm adherence to the right, the children of God are to seal their destiny. MHH 264.1