'A seed' signifies the ultimate and primary levels in a person. It also signifies good and truth from the Lord. In an opposite sense, it signifies falsity of doctrine and hellish falsity. 'A seed' signifies everyone who constitutes the Lord's spiritual kingdom and faith grounded in charity.

In Genesis 12:7, 8:15, 16, 'a seed' signifies love and everyone who has love.

(Odkazy: Arcana Coelestia 1025)

Keeping" in the Bible generally concerns the actions of life, though in some cases it can mean holding something away from the activities of life to safeguard it. By far the most common use of "keep" is connected with keeping the Lord's commandments or keeping feast days or rituals. These all mean putting true ideas from the Lord into action in life; simply knowing them or remembering them is not enough. In a deeper sense, it means worshiping the Lord, since living life according to His leading is the ultimate act of worship. When its not possible to act from the Lord's commandments, "keeping" represents remembering and safeguarding those true ideas so that they can be put into practice eventually.