What will be the third plague?

Answer

"And the third angel poured out his vial upon the rivers and fountains of waters; and they became blood."
Verse 4.
NOTE-The second plague affects the sea. The third plague comes closer to the habitations of men,
and affects the land. The water supplies are contaminated.

By what is Grecia, the kingdom succeeding Medo-Persia, represented in the image?
What would obedience to God's commandments have ensured to ancient Israel?
Under what condition is the written law good?
What unites all believers under the new covenant?
What does God say the Sabbath will be to those who hallow it, or keep it holy?
How does this association regard the Catholic Church on this point?
Does God willingly afflict the children of men?

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