Jamieson, Fausset and Brown on Genesis 31:4

4. Jacob sent and called Rachel and Leah--His wives and family were in their usual residence. Whether he wished them to be present at the festivities of sheep shearing, as some think; or, because he could not leave his flock, he called them both to come to him, in order that, having resolved on immediate departure, he might communicate his intentions. Rachel and Leah only were called, for the other two wives, being secondary and still in a state of servitude, were not entitled to be taken into account. Jacob acted the part of a dutiful husband in telling them his plans; for husbands that love their wives should consult with them and trust in them (Pr 31:11).