In this covenant with Israel, what obligation was imposed upon the people?

Answer

"Now therefore, if you will obey My voice indeed, and keep My covenant." Verse 5, first part.

To whom did this promised seed refer?
What did this bring to him?
What blessing does the Psalmist say attends the keeping of God's commandments?
What system was established on account of man's transgression of the law of God?
What is one of the offices of the moral law?
Against what three things does the third angel of Revelation 14 warn men?
Who notes the groans of the prisoner?

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