Invisible

For the invisible things of him from the creation of the world are clearly seen, being understood by the things that are made, even his eternal power and Godhead; so that they are without excuse:

Romans 1:20

Who is the image of the invisible God, the firstborn of every creature:

Colossians 1:15 

Now unto the King eternal, immortal, invisible, the only wise God, be honour and glory for ever and ever. Amen.

1 Timothy 1:17

By faith he forsook Egypt, not fearing the wrath of the king: for he endured, as seeing him who is invisible.

Hebrews 11:27