What is the ground of justification on God's part?

Answer

"That being justified by His grace, we should be made heirs according to the hope of eternal life." Titus 3:

To how many is the Lord good?
What is the means through which this justifying grace is made available to the sinner?
Why did Israel fail to attain unto righteousness?
While God is merciful, does this clear the guilty?
How did God reprove their disobedience?
What was Paul's manner respecting the Sabbath?
How did David express himself on this point?

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