From the Hebrew name
יִצְחָק (Yitzchaq) meaning "he will laugh, he will rejoice", derived from
צָחַק (tzachaq) meaning "to laugh". The Old Testament explains this meaning, by recounting that
Abraham laughed when God told him that his aged wife
Sarah would become pregnant with Isaac (see Genesis 17:17). When Isaac was a boy, God tested Abraham's faith by ordering him to sacrifice his son, though an angel prevented the act at the last moment. Isaac went on to become the father of
Esau and
Jacob with his wife
Rebecca.
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