The parable of the Wise Man and the Foolish Man which Jesus told, is a story which many people first heard in Sunday School.
Therefore everyone who hears these words of mine and puts them into practice is like a wise man who built his house on the rock.
The rain came down, the streams rose, and the winds blew and beat against that house; yet it did not fall, because it had its foundation on the rock.
But everyone who hears these words of mine and does not put them into practice is like a foolish man who built his house on sand.
The rain came down, the streams rose, and the winds blew and beat against that house, and it fell with a great crash.
Matthew 7:24-27 (NIV)
However, I would like us to revisit this story once again for a moment.
Both men built a house. No one got up one day and thought to themselves, "Today I think I am going to build a house which is going to collapse under the brunt of the wind and waves." They no doubt planned it out, dreamed about it and put a lot of hard work into their houses. Their expectation was that their house would be a solid house; a house that would stand.
Good intentions are not good enough.
It seems pretty clear cut. In both instances the individual hears the Word of God. The difference lies in whether or not they put it into practice. This is not salvation by works nor is it legalism. This is Jesus telling us that it is not enough to simply be a hearer of the Word. We must also be a doer. It is then and only then that our house will stand firm.
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Certainly a wise person would evaluate the ground to see if it is solid. Certainly a wise person would do all he could to make sure his investment is not going to fall apart during the first storm. Whatever we do for God in our lives we need to constantly look to Him and make sure we doing things HIS way and not our own. As you say, it is not enough to just hear how things should be done, we must do them in order to receive God's blessings.