A “Ner Tamid” is a lamp that burns perpetually in sanctuaries or synagogues in the world and is placed before, near or above the ark where the Torah Scroll is placed (the aron kodesh). The ner tamid represent the light that burned continuously in the western section of the ancient Temple in Jerusalem.
The institution of the ner tamid in synagogues is a symbolic reminder of the menorah which burned continually in the Temple (see Ex. 27:20; Lev. 24:2), as the synagogue is considered a spiritual replica of the Temple ("small sanctuary," Meg. 29a).
But the most important thing is that the Ner Tamid represents the eternal light of holiness, a symbol of God's continual, perpetual presence in our lives everywhere, not just in the synagogue. - this represents Yeshua the Light of the World.
Yeshua himself said “ I am the Light of the world. He who follows Me will not walk in the darkness, but will have the Light of life.”
This is our ner tamid in our “little Shul” in Queensland and we let the lamp burn to show that the light of Messiah always burns in this sin-darkened world. ... In many synagogues the lamp are often coloured red, though this is not prescribed . We at L’chaim agreed that our light will be like the “Tekhelet” to always remind us of “ His Righteousness.”
Baruch HaShem - Yeshua is our Ner Tamid!