Why is God like a cornerstone?


The stone the builders rejected has become the cornerstone…Psalm 118:22
So this is what the Sovereign Lord says:
“See, I lay a stone in Zion, a tested stone,
    a precious cornerstone for a sure foundation;
the one who relies on it
    will never be stricken with panic.
I will make justice the measuring line
    and righteousness the plumb line;
hail will sweep away your refuge, the lie,
    and water will overflow your hiding place. Isaiah 28:16-17
            When constructing a building, the first stone laid was the cornerstone, the ground floor at the corner of the building.  It’s measurements and setting determined the plumb line which stretched the rest of the walls in all directions.  If the cornerstone was off, the building was off.
            Like a cornerstone, God’s love sets the course of our lives.  We base our love first on God’s love and that helps us spread our love in every direction.  Many reject God’s love and want to build their lives on their personal definition of love or the world’s definition of love.  That just ends up falling apart.