Who was the seed here referred to?

Answer

"Now to Abraham and his seed were the promises made. He says not, And to seeds, as of many; but as of
one, And to thy seed, which is Christ!' Gal. 3: 16.

How does the Spirit witness to our acceptance with God?
What does the imputed righteousness of Christ enable God to do, and still be just?
How was the prophecy given?
What memorial of His creative power did God establish?
To whom was this covenant-promise later renewed?
Did Christ keep the Sabbath?
What were the names of these seven churches?

Questions & Answers are from the book Bible Readings for the Home Circle