2. The application of this history of God's mercies to them is by way of exhortation to fear and serve God, in gratitude for his favour, and that it might be continued to them, v. 14. Now therefore, in consideration of all this, (1.) "Fear the Lord, the Lord and his goodness, Hos. iii. 5. Reverence a God of such infinite power, fear to offend him and to forfeit his goodness, keep up an awe of his majesty, a deference to his authority, a dread of his displeasure, and a continual regard to his all-seeing eye upon you." (2.) "Let your practice be consonant to this principle, and serve him both by the outward acts of religious worship and every instance of obedience in your whole conversation, and this in sincerity and truth, with a single eye and an upright heart, and inward impressions answerable to outward expressions." This is the truth in the inward part, which God requires, Ps. li. 6. For what good will it do us to dissemble with a God that searches the heart? (3.) Put away the strange gods, both Chaldean and Egyptian idols, for those they were most in danger of revolting to. It should seem by this charge, which is repeated (v. 23), that there were some among them that privately kept in their closets the images or pictures of these dunghill-deities, which came to their hands from their ancestors, as heir-looms of their families, though, it may be, they did not worship them; these Joshua earnestly urges them to throw away: "Deface them, destroy them, lest you be tempted to serve them." Jacob pressed his household to do this, and at this very place; for, when they gave him up the little images they had, he buried them under the oak which was by Shechem, Gen. xxxv. 2, 4. Perhaps the oak mentioned here (v. 26) was the same oak, or another in the same place, which might be well called the oak of reformation, as there were idolatrous oaks.