Excerpt From Blog Post:Inspired by a post at Yachdus, some delving into a midrash brought down by Rashi, and how it might work alongside the peshat. The pasuk in Lech Lecha {Bereishit 14:14} states:
| יד וַיִּשְׁמַע אַבְרָם, כִּי נִשְׁבָּה אָחִיו; וַיָּרֶק אֶת-חֲנִיכָיו יְלִידֵי בֵיתוֹ, שְׁמֹנָה עָשָׂר וּשְׁלֹשׁ מֵאוֹת, וַיִּרְדֹּף, עַד-דָּן. | 14 And when Abram heard that his brother was taken captive, he led forth his trained men, born in his house, three hundred and eighteen, and pursued as far as Dan. |
and
Rashi there states that this is a reference to Eliezer:
| three hundred and eighteen: Our Sages said (Gen. Rabbah 43:2, Ned. 32a): It was Eliezer alone, and it [the number 318] is the numerical value of his name. | | שמונה עשר ושלש מאות: רבותינו אמרו אליעזר לבדו היה, והוא מנין גימטריא של שמו: |