Colossians 4:2 in the King James Version
Continue in prayer, and watch in the same with thanksgiving;
Context
1 Masters, give to your servants that which is just and equal, knowing that you also have a Master in heaven.
2 Continue steadfastly in prayer, watching in it with thanksgiving,
3 praying together for us also, that God may open to us a door for the word, to speak the mystery of Christ, for which I am also in bonds,