Genesis 26:25

And he builded an altar there, and called upon the name of the Lord, and pitched his tent there; and there Isaac's servants digged a well. Isaac here followed the custom of his father Abraham in building an altar and proclaiming the name of Jehovah, in establishing the worship of the true God, not only for his own household, but also for all with whom he came in contact. Every time when believers experience the blessing, protection, and help of the Lord, they turn to Him with all the greater zeal and love and praise His holy name.