How do Lavan's words counter Yakov's claim?
Rashi and Rashbam 1 : He was stating that it would not even enter his mind to harm any of all those mentioned in the Pasuk.
Seforno: He maintained that, even had he switched the conditions, or send him away empty-handed, he would have been acting within his rights, seeing as everything that Yakov owned, he obtained by trickery. Indeed, he added, he (Lavan) was perfectly entitled to take them all. 2
Ramban: He pointed out that he could not possibly harm his own daughters and their children, who were born in his home. And he claimed that he had run after him, not to do them harm, but to see what good he could do on their behalf.
Ohr ha'Chayim #1: I could show what you took from me, but I do not want to shame my [grand]sons and daughters, or go to judgment with them.
Ohr ha'Chayim #2: How can I prove via Simanim what is mine? [Your family is] my grand]sons and daughters
Why did Lavan add the word "l'Eileh" (to these)?
Redak: To daughters as good as these, how could I do anything [bad]?!
Ohr ha'Chayim #1: What can I do to this property? [If I take it, like I am entitled to,] what will be for my daughters and their children?
Ohr ha'Chayim #2: What can I do to harm my daughters? Even though they consider themselves like 'Eleh' (strangers) today, based on their deeds, they are my daughters.
How can Lavan say that everything is his? He himself (Bereishis 30:27) said that Hashem blessed him due to Yakov!
Ohr Yechezkel Midos p.15-16: This shows what lowliness is possible in a person.
How can Lavan say "the sons are mine"? Yakov fathered them!
Moshav Zekenim: He said that Yakov is an Eved Ivri, so "ha'Ishah vi'Yladeha Tihyeh la'Doneha." 1
He could say so about Bnei Bilhah and Zilpah, who were slaves. What is his claim to Bnei Leah and Rachel?! (PF)
Why did Lavan say "what can I do to these today"?
Tosfos ha'Shalem (6, citing R. Efrayim): Had I known you were leaving, I would have given to them pillows, blankets and household Kelim. Here, I have nothing to give to them.
Refer to 31:43:2:3.
Why does it say "their children that they bore"?