When praying what must we do in order to be forgiven?

Answer

"And when you stand praying, forgive, if you have anything against any: that your Father also which is in
heaven may forgive you your trespasses." Mark 11: 25.

By whom was this fulfilled?
Who are called to repentance?
In what condition are all men?
What was Satan's design in thus persecuting the church?
When Elijah was about to take a forty days journey, how was he strengthened for it?
In how many things may we ask help from God?
What is an evidence of perfection?

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