ISB ~ Colossians 1 v12

qualified us:i.e., by the grace of divine adoption. For Paul, it is our sonship in Christ that makes us heirs of all that the Father desires and intends to give us (Rom 8:16-17; Gal 4:4-7).

inheritance of the saints:Salvation in the heavenly kingdom of God (1 Cor 6:9-10). Even now believers possess a first installment of this inheritance through the indwelling of the Spirit (Eph 1:13-14). An equivalent expression occurs in the Dead Sea Scrolls (“the lot of the saints”, 1QS 11, 7-8).