A seed shall serve him; it shall be accounted to the Lord for a generation.
A seed shall serve him - (Isaiah 53:10). As He is the "seed" long promised, so He has a "seed" which springs up from Him spiritually.
Accounted to the Lord. Though Christ had no natural offspring, the "seed" just mentioned 'shall be accounted (literally, declared: the same Hebrew, as "declare," Psalms 22:22) to the Lord for a generation' by adoption (Psalms 87:5).