Daily Service: Different, not Strange
I hope you get the general idea here: the KJV interpretation of the word resulted in peculiar but the intent describe in the NKJV and the AMP Bible at least for the 1 Peter reference indicate two translations for the Greek word being different or special. The modern connotation for peculiar is strange or weird. We are not called to be strange or weird but clearly called to be different than the world we walk in and are ambassadors to.
1 Peter 2:9 (KJV) But ye are a chosen generation, a royal priesthood, an holy nation, a peculiar people; that ye should shew forth the praises of him who hath called you out of darkness into his marvellous light:
1 Peter 2:9 NKJV But you are a chosen generation, a royal priesthood, a holy nation, His own special people, that you may proclaim the praises of Him who called you out of darkness into His marvelous light;
1 Peter 2:9 (AMP) But you are a chosen race, a royal priesthood, a dedicated nation, [God’s] own purchased, special people, that you may set forth the wonderful deeds and display the virtues and perfections of Him Who called you out of darkness into His marvelous light.
Exodus 19:5 (KJV) Now therefore, if ye will obey my voice indeed, and keep my covenant, then ye shall be a peculiar treasure unto me above all people: for all the earth is mine:
Exodus 19:5 NKJV Now therefore, if you will indeed obey My voice and keep My covenant, then you shall be a special treasure to Me above all people; for all the earth is Mine.
Exodus 19:5 (AMP) Now therefore, if you will obey My voice in truth and keep My covenant, then you shall be My own peculiar possession and treasure from among and above all peoples; for all the earth is Mine.