NET

28 And now, little children, remain in him, so that when he appears we may have confidence and not shrink away from him in shame when he comes back.

Darby

Children of God

28 And now, children, abide in him, that if^D9370 he be manifested we may have boldness, and not be put to shame from before him at his coming.

Darby Bible Notes

if - 'If ' (so 3John 10) sets out what supposes and depends on the fact, not referring to time. Here, if at any moment it happened, we should be so and so. if that, this might be too.

KJV

Children of God

28 And now, little children, abide in him; that, when he shall appear, we may have confidence, and not be ashamed before him at his coming.