Bathsheba's plea is more than just a mother's ambition. It's about ensuring the rightful succession and the continuation of God's intended plan for Israel's leadership.
Bathsheba's strategic reminder to David is rooted in the idea of divine appointment for kingship. David had previously designated Solomon as his successor, likely with God's approval or at least within the framework of God's established covenant with his lineage. By invoking the oath, Bathsheba is asserting that Solomon's succession is not just David's personal wish, but a divine mandate that must be honored.
This perspective frames kingship not as a secular power grab, but as a divinely ordained responsibility. Bathsheba's actions are aimed at upholding this sacred order, ensuring that the next ruler would be the one chosen, recognized by God, and affirmed by the king's solemn vow.