31:35 The Lord reminded His people that He was the one who controlled the course of nature, not Baal. It operated regularly and within His set limits, as He promised Noah it would (cf. Gen. 8:22; 9:8-17). The sun and moon do not vary from their positions, but the sea appears to operate chaotically, yet the Lord controls them all.
31:36 Future Israel would no more cease from being a special nation in God's sight than the fixed order of nature would cease.
31:37 If people could thoroughly explore the heavens above or the earth beneath, then the Lord would cast off future Israel because of her sins.
"Looking beyond national Israel for the fulfillment of this prophecy in the church, as a spiritual Israel, fails to grapple with the certainty of the statements in Jeremiah 31:36-37."420