In Phi 3:14 'the upward call' means we need to live on a higher plane (Isa 55:8-9; Luk 21:28; 1Co 10:5). Col 3:5-17 positive and negative commands for practical living a spiritual life. We need to put on Christ (Rom 13:14) and put off defiled garments (Jud 1:23; Col 3:9-10) -- our 'old man' was nailed to the cross with Christ and is dead. The power of sin is broken. We are not 'sinners saved by Grace' but new creatures (2Co 5:17; Rom 12:2; 1Co 2:16; Rom 6:11). We need to reckon our members dead to sin (Col 1:5-8; Rom 6:13) ; e.g.; our hand alone has phenominal potential; for sin or good. Luk 11:24 a downward spiral that occurs when we don't replace an area of sin with the things of God: prayer; service; the word; etc (Col 3:11-17).
Paul never met the Colossians but wrote to them from a Roman prison around 62 AD to counter misconceptions of his day. It magnifies the character of Jesus Christ more than any other book in the New Testament, and counters misconceptions of our day as well. The key verse may well be Col 1:18 "...that in all things, He might have preeminence."