Nasas (H5264) means to lift up or display as a banner, to flutter like a flag in the wind. It appears in contexts of rallying the faithful under God's standard and proclaiming His name over His people.
The banner (nes) imagery runs through Scripture as a symbol of divine protection and the gathering of the redeemed. Moses lifted up a bronze serpent on a pole (Numbers 21); Isaiah prophesied that the Messiah would stand as a banner for the nations (Isaiah 11:10). Jesus draws on this imagery in John 3:14, linking the lifting up of the Son of Man to the banner raised in the wilderness.