Instead of just being critical of the concept of "How could a loving God judge" one should at least consider the mechanisms of His judgment to perhaps see why that He might. In this account kjv@Luke:13:25 the master of the house simply shuts the door; the window of opportunity is closed. For how long a time must the master be expected to leave His door open? Is it not His to open and close as He sees fit? Has he not said to strive to enter the straight gate? And yet many have not made the effort, have rather chosen to enter however they wished whenever they wish just expecting to enter His house to do whatever they wish? What kind of master would he be towards His other more considerate guests? Are the outsiders right then to criticize His judgment and not there own judgment instead?
When the Lord says that the other trees of the field should know, we then should fully know that the Lord expects that by this action against the nation of Israel that the other nations involved will know what is occurring by His hand. They would know of the covenant between the king of Judah and Babylon that God was for, the breaking of the covenant by the making of a covenant with Egypt which God was firmly against, and the confirmation of God's wrath by the resultant slaughter of the kings and princes of the house of Judah captive in Babylon. When the Lord speaks/acts it is not for Judah's ears/eyes alone.
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