Joseph could no longer control himself in front of all his attendants, so he declared, "Everyone, leave now!" So no one stayed with him when he revealed his identity to his brothers.
References for Genesis 45:1
He wept so loudly that the Egyptians and Pharaoh's household heard him.
Joseph said to his brothers, "I'm Joseph! Is my father really still alive?" His brothers couldn't respond because they were terrified before him.
Joseph said to his brothers, "Come closer to me," and they moved closer. He said, “I'm your brother Joseph! The one you sold to Egypt.
Now, don't be upset and don't be angry with yourselves that you sold me here. Actually, God sent me before you to save lives.
We've already had two years of famine in the land, and there are five years left without planting or harvesting.
God sent me before you to make sure you'd survive and to rescue your lives in this amazing way.
References for Genesis 45:7
You didn't send me here; it was God who made me a father to Pharaoh, master of his entire household, and ruler of the whole land of Egypt.
"Hurry! Go back to your father. Tell him this is what your son Joseph says: ‘God has made me master of all of Egypt. Come down to me. Don't delay.
You may live in the land of Goshen, so you will be near me, your children, your grandchildren, your flocks, your herds, and everyone with you.
I will support you there, so you, your household, and everyone with you won't starve, since the famine will still last five years.'
You and my brother Benjamin have seen with your own eyes that I'm speaking to you.
Tell my father about my power in Egypt and about everything you've seen. Hurry and bring my father down here."
He threw his arms around his brother Benjamin's neck and wept, and Benjamin wept on his shoulder.
He kissed all of his brothers and wept, embracing them. After that, his brothers were finally able to talk to him.