וַיֵּלְכ֨וּ כָל־הָעָ֜ם הַגִּלְגָּ֗ל וַיַּמְלִכוּ֩ שָׁ֨ם אֶת־שָׁא֜וּל לִפְנֵ֤י יְהוָה֙ בַּגִּלְגָּ֔ל וַיִּזְבְּחוּ־שָׁ֛ם זְבָחִ֥ים שְׁלָמִ֖ים לִפְנֵ֣י יְהוָ֑ה וַיִּשְׂמַ֨ח שָׁ֥ם שָׁא֛וּל וְכָל־אַנְשֵׁ֥י יִשְׂרָאֵ֖ל עַד־מְאֹֽד׃ (פ)
And all the people went to Gilgal; and there they made Saul king before the LORD in Gilgal; and there they sacrificed sacrifices of peace-offerings before the LORD; and there Saul and all the men of Israel rejoiced greatly.
Read halakhic rulings (Jewish law) on I Samuel 11:15: and classical halakhic sources.