Take and Go

בראשית יב,יט: לָמָה אָמַרְ תָ אֲחֹתִי הִוא וָאֶקַח אֹתָהּ לִי לְאִשָה וְעַתָה הִנֵּה אִשְתְךָ קַח וָלֵּךְ:
The Baal HaTurim notes that the word וָלֵּךְ appears five times in Tanach:
1) Here in regard to Sara, “Here is your wife, take her and go”;
2) “Here, Rivka is before you, take her and go”;
3) With regard to Avishag the Shunamite, “lead and go” (II Melachim 4;24), which teaches that she was righteous as the Matriachs;
4) “Take your staff and go” (II Malachim 4.29);
5) “Take in your hand the scroll wherein you have read...and go” (Yirmiyahu 36,14) teaches that although the Torah does not state explicitly Paroh did give Avram gifts (when he sent him away) as it does state by Avimelech, as indicated by “take with your hand” that Paroh gave Avram articles where are given over from hand to hand.
Avigash was employed by King Dovid at the end of his life to keep him warm as mentioned in the first two chapters in II Melachim. Radak says she was 12 years old at the time. He then notes that the Shulamite woman of this verse was identified as her sister by Pirkei deRabbi Eliezer, who later encountered Elisha. Radak further offers that the two women complement each other just like Rochel and Leah, each righteous.