NET

1 I solemnly charge you before God and Christ Jesus, who is going to judge the living and the dead, and by his appearing and his kingdom:

Darby

Paul Repeats His Charge to Timothy

1 I testify before God and Christ Jesus, who is about to judge living and dead, and by^D8928 his appearing and his kingdom,

Darby Bible Notes

by - That is 'I testify or charge thee before God, and by the appearing.' 'By' may be taken as 'according to,' that is, the judgment is according to the power and glory of his appearing and his kingdom. Some authorities read 'at.'

KJV

Paul Repeats His Charge to Timothy

1 I charge [thee] therefore before God, and the Lord Jesus Christ, who shall judge the quick and the dead at his appearing and his kingdom;