Verses with the word ruins in the Old Testament (2 verses):

Ezekiel 21:15
I have set the point of the sword against all their gates, that their heart may faint, and their ruins be multiplied: ah! it is made bright, it is wrapped up for the slaughter.

Amos 9:11
In that day will I raise up the tabernacle of David that is fallen, and close up the breaches thereof; and I will raise up his ruins, and I will build it as in the days of old: