Strong’s concordance states that amen is Hebrew אָמֵן meaning so be it, truth.
From 'aman; sure; abstract, faithfulness; adverb, truly – Amen, so be it, truth.
There once was a kid who explained that Amen is like the Send button on an text message (or an email message for us older people). You recite your prayer and then hit that Amen to launch it heavenward.
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