Think much of My servants of old. How Abraham believed in the promise (when as yet he had no child) that in his seed all the nations of the earth should be blessed.How Moses led the Children of Israel through the desert, sure that, at last, they would gain the Promised Land.
Down through the ages there have always been those who obeyed, not seeing but believing, and their Faith was rewarded. So shall it be even with you.
For what saith the scriptures? Abraham believed God and it was counted unto him for righteousness. Romans 4:3