#his sister's son

"his nephew"

#embraced him

"hugged him"

#kissed him

In ancient Near East, it is common to greet a relative with a kiss. However, it is normally done between men. If your language has an affectionate greeting for a relative, use that. If not, use what is appropriate.

#Jacob told Laban all these things

"then Jacob told Laban everything he told Rachel"

#my bone and my flesh

This phrase means they are directly related. AT: "my relative" or "a member of my family" (See: [[:en:ta:vol2:translate:figs_metonymy]])