Tobit 8:9

9 And now, Lord, thou knowest, that not for fleshly lust do I take my sister to wife, but only for the love of posterity, in which thy name may be blessed for ever and ever.

Tobit 8:9 In-Context

7 And Tobias said: Lord God of our father, may the heavens and the earth, and the sea, and the fountains, and the rivers, and all thy creatures that are in them, bless thee.

8 Thou madest Adam of the slime of the earth, and gavest him Eve for a helper.

9 And now, Lord, thou knowest, that not for fleshly lust do I take my sister to wife, but only for the love of posterity, in which thy name may be blessed for ever and ever.

10 Sara also said: Have mercy on us, O Lord, have mercy on us, and let us grow old both together in health.

11 And it came to pass about the cockcrowing, Raguel ordered his servants to be called for, and they went with him together to dig a grave.