Adam made love to his wife Eve, and she became pregnant and gave birth to Cain. She said, “With the help of the LORD I have brought forth a man.” Later she gave birth to his brother Abel.Now Abel kept flocks, and Cain worked the soil. In thecourse of time Cain brought some of the fruits of thesoil as an offering to the LORD. And Abel also brought anoffering—fat portions from some of the firstborn of hisflock.
The LORD looked with favour on Abel and his offering, but on Cain and his offering he did not look with favour. So Cain was very angry, and his face was downcast. Then the LORD said to Cain, “Why are youangry? Why is your face downcast? If you do what isright, will you not be accepted? But if you do not dowhat is right, sin is crouching at your door; it desires tohave you, but you must rule over it.” Genesis 4:1-7
God received Abels sacrifice becausehe stood in a proper relationship withGod and made the offering in a manneracceptable to Him. In this way, Abelsuccessfully laid the foundation of faithin Adams family. He serves as anexample that any fallen person canmake an offering acceptable to Godprovided he satisfies the necessaryconditions. Exposition of the Divine Principle, p. 192
we must establish the foundation offaith by making the symbolicoffering, which fulfils a condition ofindemnity for the restoration of allthings and a condition of indemnity forthe symbolic restoration of people. Exposition of the Divine Principle, p. 195
The expression “the foundation of faith hasbeen established” refers to a conditionalposition where someone is able to indemnifythe Fall, which occurred due to disbelief in God,and stand again in the hopeful position ofAdam, who can be trusted by Heaven. Father Moon, Cheon Seong Gyeong p. 1211