Genesis 31:35

she said: "Do not be angry, my lord, that I am unable to rise up in your sight, because it has now happened to me according to the custom of women." So his careful search was thwarted

Other versions

King James Version

And she said to her father, Let it not displease my lord that I cannot rise up before thee; for the custom of women is upon me. And he searched, but found not the images.

English Standard Version

And she said to her father, "Let not my lord be angry that I cannot rise before you, for the way of women is upon me." So he searched but did not find the household gods.

New International Version

Rachel said to her father, "Don't be angry, my lord, that I cannot stand up in your presence; I'm having my period." So he searched but could not find the household gods.