Of mine own proper good - i. e., from his own private estate. He makes the offering publicly in order to provoke others by his example 1 Chronicles 29:5.
Related Commentaries of 1 Chronicles 29:3
1 Chronicles 29:3
3 Moreover, because I have set my affection to the house of my God, I have of mine own proper good, of gold and silver, which I have given to the house of my God, over and above all that I have prepared for the holy house,