What is the significance of Nilavilaku / Lamp in church?
Exodus 25:31-40 31 “Make a lampstand of pure gold. Hammer out its base and shaft, and make its flowerlike cups, buds and blossoms of one piece with them. 32 Six branches are to extend from the sides of the lampstand—three on one side and three on the other. 33 Three cups shaped like almond flowers with buds and blossoms are to be on one branch, three on the next branch, and the same for all six branches extending from the lampstand. 34 And on the lampstand there are to be four cups shaped like almond flowers with buds and blossoms. 35 One bud shall be under the first pair of branches extending from the lampstand, a second bud under the second pair, and a third bud under the third pair—six branches in all. 36 The buds and branches shall all be of one piece with the lampstand, hammered out of pure gold. 37 “Then make its seven lamps and set them up on it so that they light the space in front of it. 38 Its wick trimmers and trays are to be of pure gold. 39 A talent[a] of pure gold is to be used for the lampstand and all these accessories.40 See that you make them according to the pattern shown you on the mountain.
Gold was the most valuable of all metals (Psalm 119:127; 19:10). In the tabernacle, the lampstand was to be placed in the first section, called the Holy Place (Hebrews 9:2). The lamp was to be tended by Aaron and his sons so that its light never went out. The lampstand was to give forth light day and night (Exodus 27:20–21). The lampstand’s being the only source of light points directly to Christ as being the light of the world (John 8:12;9:5). Jesus is the “true light that gives light to everyone” (John 1:9) and the only way anyone can come to the Father (John 14:6).
The book of Revelations reveals that something like Menorah was an essential part of Christian Temple.Revelation 1:13 13 and among the lampstands was someone like a son of man,[a] dressed in a robe reaching down to his feet and with a golden sash around his chest.
Leviticus 24 1 The Lord said to Moses, 2 “Command the Israelites to bring you clear oil of pressed olives for the light so that the lamps may be kept burning continually. 3 Outside the curtain that shields the ark of the covenant law in the tent of meeting, Aaron is to tend the lamps before the Lord from evening till morning, continually. This is to be a lasting ordinance for the generations to come. 4 The lamps on the pure gold lampstand before the Lord must be tended continually.
Jesus also calls His church the “light of the world” (Matthew 5:14), not of their own doing but because Christ is abiding in the church (John 1:4–5). A Christian who is shining with the light of Christ will live a godly life (1 Peter 2:9). Scripture is overflowing with references that compare and contrast light and darkness, believer and unbeliever, right up through the book of Revelation. In Revelation 1:20 Christ says the “seven lampstands are the seven churches.” The churches of Christ are to walk in the light of God (1 John 1:7) and spread the light of the gospel so that all people will glorify God (Matthew 5:16).
There is other symbolism in the lampstand: it was made of one piece, as Christ is one with His church (Colossians 1:8); the six branches (6 being the number of man) plus the main shaft equals seven lights (7 being the number of completion)—man is only complete in Christ (John 15:5).