Moreover I will establish his kingdom for ever, if he be constant to do my commandments and my judgments, as at this day,"-- 1 Chronicles 28:2-7.
[125]Thus far the divine record definitely establishes the fact that the great heir or king of Israel, the seed through which the blessings of God would be bestowed, must come through David's line; and that also it should come through Solomon, provided, of course, the conditions laid upon Solomon were fulfilled.

In any event, it must come through David's line, and through his son Solomon provided Solomon met the requirements.
We repeat the words for emphasis: "Moreover I will establish his kingdom for ever, _if he be constant to do my commandments and my judgments_, as at this day".

And then David said: "And thou, Solomon, my son, know thou the God of thy father, and serve him with a perfect heart and with a willing mind: for the Lord searcheth all hearts, and understandeth all the imaginations of the thoughts: if thou seek him, he will be found of thee; but if thou forsake him, he will cast thee off for ever".
-- 1 Chronicles 28:9.
[126]The question is, Did Solomon receive the approval of the Lord?
If so, the great Messiah must come through his line.

If not, then he could not come through Solomon.

This question is answered by the Scriptures, as follows: "For it came to pass, when Solomon was old, that his wives turned away his heart after other gods: and his heart was not perfect with the Lord his God, as was the heart of David his father....