2 Bible Verses about dissatisfaction

Jesus answered and said to her, "Every one who drinks of this water will thirst again; but whosoever drinks of the water that I will give him will never thirst; but the water that I will give him will become in him a well of water springing up into eternal life."

Now I beseech you, brethren, to mark those who are causing the divisions and occasions of stumbling, contrary to the teaching which ye learned; and turn away from them.