2 Bible Verses about dissatisfaction

Jesus answered and said to her, Whosoever drinketh of this water, will thirst again. But whosoever drinketh of the water that I shall give him, will never thirst; but the water that I shall give him, will be in him a fountain of water, springing up into everlasting life.

Now I beseech you, brethren, mark them who cause divisions and offences, contrary to the doctrine which ye have learned, and avoid them.