1
ולא חנכו. וְלֹא דָּר בּוֹ, חִנּוּךְ לְשׁוֹן הַתְחָלָה: ולא חנכו [WHAT MAN IS THERE THAT HATH BUILT A NEW HOUSE] AND HATH NOT DEDICATED IT — i.e. has not yet dwelt in it. The term חנך denotes beginning a thing (here, it means beginning to live in it; cf. Rashi on Genesis 14:14).
2
ואיש אחר יחנכנו. וְדָבָר שֶׁל עָגְמַת נֶפֶשׁ הוּא זֶה: ואיש אחר יחנכנו [LEST HE DIE IN THE WAR] AND ANOTHER MAN DEDICATE IT — which is a matter that causes grief of mind.