New Revised Standard Version
He sent messengers to Abimelech at Arumah, saying, “Look, Gaal son of Ebed and his kinsfolk have come to Shechem, and they are stirring up the city against you.

Contemporary English Version
And so he sent some messengers to Abimelech. But they had to pretend to be doing something else, or they would not have been allowed to leave Shechem. Zebul told the messengers to say: Gaal the son of Ebed has come to Shechem along with his brothers, and they have persuaded the people to let Gaal rule Shechem instead of you.

New American Bible
and sent messengers to Abimelech in Arumah to say, “Gaal, son of Ebed, and his kin have come to Shechem and are stirring up the city against you.

Douay-Rheims Bible
And sent messengers privately to Abimelech, saying: Behold, Gaal, the son of Obed, is come into Sichem with his brethren, and endeavoureth to set the city against thee.

And sent messengers privately to Abimelech, saying: Behold, Gaal, the son of Obed, is come into Sichem with his brethren, and endeavoureth to set the city against thee.

privily.