Paul speaks of his sufferings on behalf of the Colossians, which can be understood only in a general sense of his hardships and troubles in his work as the apostle to he Gentiles, since he has had no personal contact with the Christians in Colossae. Since the relationship between sufferings and being happy is essentially one of cause and effect, it may be important to make this quite explicit, for example, “my sufferings on your behalf have caused me to be happy” or “I am happy that
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