2 Timothy 2:19 says, “Nevertheless the solid foundation of God stands, having this seal: The Lord knows those who are His, and Let everyone who names the name of Christ depart from iniquity.”
Hebrews 4:13 Amplified says, “And not a creature exists that is concealed from His sight, but all things are open and exposed, naked and defenseless to the eyes of Him with Whom we have to do.”
Only the Lord knows hearts. We only know what another is thinking if they tell us. We often fall into error when we assume something. Assumptions are based on what we think we know. When we react in our flesh ~ that is iniquity.
Our flesh wants to figure things out. Waiting patiently for the Lord’s way to be revealed is a spiritual life skill. It is based on moment by moment hope in His divine orchestration and impeccable timing.
Sarah’s devised plan not only failed, but continues to bear the fruit of those consequences. In spite of this, God had His way. Romans 4 recorded Abraham’s faith, not his giving in to Sarah’s fleshly driven scheme.