NET

5 He did this by predestining us to adoption as his legal heirs through Jesus Christ, according to the pleasure of his will—

Darby

5 having marked us out beforehand^D8604 for adoption^D8605 through Jesus Christ to himself, according to the good pleasure of his will,

Darby Bible Notes

beforehand - The word translated 'marked out beforehand' involves purpose. It is not 'counsel,' though it is 'according to the good pleasure of his will,' and, in ver. 11, 'according to his purpose,' and 'according to the counsel of his own will.' The word horizo means 'mark out,' 'determine,' as in Rom. 1.4; here pro (beforehand) is prefixed. It refers generally to persons, but is applied to things as in 1Cor. 2.7. When applied to persons, that to which they are destined is always added. adoption - Or 'sonship,' as Gal. 4.5.

KJV

5 Having predestinated us unto the adoption of children by Jesus Christ to himself, according to the good pleasure of his will,