Two ways and two consequences

King 1 9:1-9
The Lord appeared to Solomon second time, as he had appeared to him at Gibeon.
If you walk before me in integrity of heart and uprightness, as David your father did, and do all I command and observe my decrees and laws. You shall never fail to have a man on the throne of Israel.
But if you or your sons turn away from me and do not observe the commands and decree I have given you and go off to serve other gods and worship them, then I will cut off Israel from the land I have given them and will reject this temple I have consecrated for my Name.
If ... if not' - God repeats the promise made to David, with a warning. Solomon ignored this and suffered the consequences, though God did not break his promise of a lasting family line.
Why?
There are two ways and two consequences God warned Solomon, but Solomon ignored this and suffered the consequences for the rich and power made him forgot the grace of the Lord!
Even there was temple of the Lord built in Jerusalem, but more important is to observe decree of the Lord and obey his command in integrity of heart and uprightness.
Integrity : the quality of being honest and having strong moral principles; moral uprightness; the state of being whole and undivided.
How?
Do not be a religious appearance but be an Christian with integrity of heart and uprightness to the Lord.