Halt the falling away!

"Let no man deceive you by any means: for that day shall not come, except there come a falling away first." (II Thes 2)

"A man's enemies are the men of his own house." (Micah 7:6)

“Ye cannot serve God and mammon.” (Matt 6:24)

And here is a case study:

What was Jehoshaphat thinking?!