John Calvin Commentary Genesis 29:13

"And it came to pass, when Laban heard the tidings of Jacob his sister`s son, that he ran to meet him, and embraced him, and kissed him, and brought him to his house. And he told Laban all these things." — Genesis 29:13 (ASV)

And he told Laban all these things. Since Laban had previously seen one of Abraham’s servants supplied with great wealth, an unfavorable opinion of his nephew might instantly have entered his mind: it was therefore necessary for holy Jacob to explain the causes of his own departure and the reason why he had been sent away so poorly clothed.

It is also probable that he had been instructed by his mother concerning the signs and marks by which he might convince them of his relationship: therefore Laban exclaims, Surely thou art my bone and my flesh; intimating that he was fully satisfied and that he was induced by undeniable signs to acknowledge Jacob as his nephew. This knowledge inclines him to kindness; for natural instinct dictates that those who are united by ties of blood should endeavor to assist each other; but though the bond between relatives is closer, yet our kindness should extend more widely, so that it may spread through the whole human race. If, however, all the sons of Adam are joined together in this way, that spiritual relationship which God produces between the faithful, and than which there is no holier bond of mutual benevolence, should be much more effective.