To whom is the gospel the power of God unto salvation?

Answer

"For I am not ashamed of the gospel of Christ: for it is the power of God unto salvation to everyone that
believes; to the Jew first, and also to the Greek." Rom. 1: 16.

What is necessary in order that the preaching of the gospel may be profitable?
From what is He able to keep us?
What does it mean when used with reference to law?
What title of distinction is given the law of God?
Where did Moses command the Levites to put the book of the law which he had written?
Who alone knows the exact day of Christ's coming?
What were the colour and character of the fourth symbol?

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