Parshat Chayei Sarah
Weekly Parsha
Parshat Chayei Sarah

Eliezer
Eliezer prayed by the water because it is good to pray near water since prayer is compared to water.[2] 

Keturah
When Hagar did Teshuva for returning to idolatry, then Avrohom took her back in peace and remarried her.[1]

Rivka
Unlike Adom who was banished from the Upper Realms due to his wife, Yitzchak was raised to greater levels by marrying Rivka, since she was a replacement for Sarah.[3]
[1] Baal Haturim Berashis 16:1
[2] Baal Haturim Berashis 16:7
[3] Baal Haturim Berashis 2:22