New Living Translation
The LORD has done this to you today because you refused to carry out his fierce anger against the Amalekites.

American Standard Version
Because thou obeyedst not the voice of Jehovah, and didst not execute his fierce wrath upon Amalek, therefore hath Jehovah done this thing unto thee this day.

Berean Study Bible
Because you did not obey the LORD or carry out His burning anger against Amalek, the LORD has done this to you today.

Douay-Rheims Bible
Because thou didst not obey the voice of the Lord, neither didst thou execute the wrath of his indignation upon Amalec. Therefore hath the Lord done to thee what thou sufferest this day.

English Revised Version
Because thou obeyedst not the voice of the LORD and didst not execute his fierce wrath upon Amalek, therefore hath the LORD done this thing unto thee this day.

King James Bible
Because thou obeyedst not the voice of the LORD, nor executedst his fierce wrath upon Amalek, therefore hath the LORD done this thing unto thee this day.

World English Bible
Because you didn't obey the voice of Yahweh, and didn't execute his fierce wrath on Amalek, therefore Yahweh has done this thing to you this day.

Young's Literal Translation
Because thou hast not hearkened to the voice of Jehovah, nor didst the fierceness of His anger on Amalek -- therefore this thing hath Jehovah done to thee this day;

1 Samuel 28:18 Additional Translations ...