Is an unclean land with the filthiness of the people of the lands Or, of these lands, which are round about it. This expresses the cause or matter of this uncleanness: the land was not unclean of itself, but only polluted by the filthiness of its inhabitants. Give not your daughters unto their sons, &c., that ye may be strong Although you may fancy making leagues and marriages with them is the only way to establish you, yet, I assure you, it will weaken and ruin you, and the contrary course will make you strong.
Related Commentaries of Ezra 9:11
Ezra 9:11-12
11 Which thou hast commanded bye thy servants the prophets, saying, The land, unto which ye go to possess it, is an unclean land with the filthiness of the people of the lands, with their abominations, which have filled it from one end to another with their uncleanness.
12 Now therefore give not your daughters unto their sons, neither take their daughters unto your sons, nor seek their peace or their wealth for ever: that ye may be strong, and eat the good of the land, and leave it for an inheritance to your children for ever.