“I now leave, not knowing when, or whether ever, I may return, with a task before me greater than that which rested upon Washington. Without the assistance of that Divine Being, who ever attended him, I cannot succeed. With that assistance I cannot fail. Trusting in Him, who can go with me, and remain with you and be every where for good, let us confidently hope that all will yet be well. To His care commending you, as I hope in your prayers you will commend me, I bid you an affectionate farewell.”
1860s, Illinois Farewell Address (1861)
Context: My friends — No one, not in my situation, can appreciate my feeling of sadness at this parting. To this place, and the kindness of these people, I owe every thing. Here I have lived a quarter of a century, and have passed from a young to an old man. Here my children have been born, and one is buried. I now leave, not knowing when, or whether ever, I may return, with a task before me greater than that which rested upon Washington. Without the assistance of that Divine Being, who ever attended him, I cannot succeed. With that assistance I cannot fail. Trusting in Him, who can go with me, and remain with you and be every where for good, let us confidently hope that all will yet be well. To His care commending you, as I hope in your prayers you will commend me, I bid you an affectionate farewell.
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Abraham Lincoln 618
16th President of the United States 1809–1865Related quotes

Speech to Parliament http://www.british-history.ac.uk/report.aspx?compid=12935 (30 May 1685).

As quoted in Life of Pius X (1918) by Francis Alice Forbes, p. 35
Variant translation: My hope is in Christ, who strengthens the weakest by His Divine help. I can do all in Him who strengthens me. His Power is infinite, and if I lean on him, it will be mine. His Wisdom is infinite, and if I look to Him counsel, I shall not be deceived. His Goodness is infinite, and if my trust is stayed in Him, I shall not be abandoned.
Context: I shall spare myself neither care nor labour nor vigils for the salvation of souls. My hope is in Christ, who strengthens the weakest by His divine help; I can do all in Him who strengthened me! His power is infinite, and if I lean on Him it will be mine; His wisdom is infinite, and if I look to Him for counsel I shall not be deceived; His goodness is infinite, and if my trust is stayed on Him I shall not be abandoned. Hope unites me to my God and Him to me. Although I know I am not sufficient for the burden, my strength is in Him. For the salvation of others I must bear weariness, face dangers, suffer offences, confront storms, fight against evil. He is my Hope.

Ruth Levinson, Chapter 28 Ira, p. 328-329
2009, The Longest Ride (2013)
Source: My Forty Years with Ford, 1956, p. 49-50