ציטירנדיקער פּירוש אויף בראשית 20:4

לא תקרבו, “do not approach;” this expression is a simile for describing carnal relations. An example of the use of this expression elsewhere is in Genesis 20,4: ואבימלך לא קרב אליה, “Avimelech did not approach her,” or Isaiah 8,3: ואקרב אל הנביאה, “I was intimate with the prophetess;”

ויקרב אל אחיו את המדינית, “and he publicly presented to his brethren the Midianite woman;” the root קרב has been chosen by the chosen by the Torah to describe carnal relations, for instance in Genesis 20,4. Compare also Isaiah 8,3 ואקרב אל הנביאה, “I was intimate with the prophetess.”

מות יומת, will be executed. The repetition of the word מות refers to death by human tribunal as well as by heavenly forces. The reason Avimelech used the word "whoever touches," was to warn his subjects that even conduct for which Gentiles normally are not punishable by death would become capital offences in this instance (compare what we have written on Genesis 20,4).