Followed the Lord wholeheartedly

Joshua 14:6-15
Joshua blessed Caleb son of Jephunneh and gave him Hebron as his inheritance.
So Hebron has belonged to Caleb son of Jephunneh the Kenizzite. ever since, because he followed the Lord, the God of Israel, wholeheartedly. 
Calab said to Joshua "just as the Lord promised, he has kept me alive for forty-five years since the time he said this to Moses, while Israel moved about in the wilderness. So here I am today, eighty-five years old!  I am still as strong today as the day Moses sent me out.
Calab claims Hebon. Forty-five years after the spy episode Caleb remains a man of unwavering faith. There are still Anakim survivors to deal with. Hebron became Levite property, but Caleb retained the surrounding land and villages.
Why?
The unwavering faith to the Lord, God blessed Caleb alive for 85 years old and still strong and vigorous as 45 years ago.
Wholeheartedly: Don't care worse situation in the world but focus on the Lord and trust in the Lord.
How?
Followed the Lord wholeheartedly is the key to get the inheritance of the Lord.