'When He Comes' in the Bible

Even now, little children, abide in him. Then, when he appears, we will have confidence and will not turn away from him in shame when he comes.

Beloved, we are [even here and] now children of God, and it is not yet made clear what we will be [after His coming]. We know that when He comes and is revealed, we will [as His children] be like Him, because we will see Him just as He is [in all His glory].