Begin manly with every work of excellence; do not approach it with a double heart. Do not doubt in thy heart, on the way of thy course, of the hope of God’s grace, lest thy toiling become in vain and the work of thy service become heavy for thee. But believe in thy heart that God is merciful and gives grace to those who seek Him, not in accordance with our service but in accordance with the love of our soul and our faith in Him. For as thou hast believed, so it will happen to thee. [Mar Isaac the Syrian, Ascetical Homilies]