God is above all in my life

Isaiah 1:18-37
I will vent my wrath on my foes  and avenge myself on my enemies. I will turn my hand against you; I will thoroughly purge away your dross and remove all your impurities. I will restore your leaders as in days of old, your rulers as at the beginning. Afterward you will be called the City of Righteousness, the Faithful City.
But rebels and sinners will both be broken, and those who forsake the Lord will perish. The mighty man will become tinder  and his work a spark; 
You will be ashamed because of the sacred oaks in which you have delighted;
You will be disgraced because of the gardens that you have chosen.You will be like an oak with fading leaves, like a garden without water. both will burn together, with no one to quench the fire.
The language is extreme. Once-faithful Jerusalem is 'bbehaving like a whore(妓女)', utterly betraying God's trust. God's people are his 'enemies'. Yet still God offers forgiveness. Swift and terrible judgment will fall on all who continue to defy him: he will cleanse his people from their sins.
Oak: The sacred groves(神聖的小樹林) where Canaanite rites(儀式) took place; symbols of the nation's idolatry.
Why?
The procedure is terrible and pain when God cleanse his people from their sins.
All rebels and sinners will be broken, and whose who forsake the Lord will perish. This is the waring from the Lord the evil doers.
God's people for the love of God so discipline will come over them. 
Do not make any kind of idolatry in our life, only God is my first priority and God is above all.
How?
Honor the name of the Lord and God's word and God's position is above all in my life.