Numbers 12:11

The Intercession of Moses

12:11 So Aaron said to Moses, “O my lord, ¹  please do not hold this sin against us, in which we have acted foolishly and have sinned!

Numbers 32:25

32:25 So the Gadites and the Reubenites replied to Moses, “Your servants will do as my lord commands.

[12:11]  ¹ tn The expression בִּי אֲדֹנִי (bi ’adoni, “O my lord”) shows a good deal of respect for Moses by Aaron. The expression is often used in addressing God.