The Parable of Two Houses

In the Gospels Christ gives a message – whoever hears my word and keeps it, is like the wise man who built his house on the rock, while whoever hears my word and doesn’t keep it, is like the man who built his house on the sand.
What’s the difference between these two house builders, what was Christ conveying through this parable? Father Markos Mangasaryan provided explanation.

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