The Collaborative International Dictionary of English v.0.48:

Chambering \Cham"ber*ing\, n.
   Lewdness. [Obs.] --Rom. xiii. 13.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Chamber \Cham"ber\, v. i. [imp. & p. p. Chambered; p. pr. &
   vb. n. Chambering.]
   1. To reside in or occupy a chamber or chambers.
      [1913 Webster]

   2. To be lascivious. [Obs.]
      [1913 Webster]

Easton's 1897 Bible Dictionary:

Chambering
   (Rom. 13:13), wantonness, impurity.