Verses with the word constant in the Apocrypha (3 verses):

2 Esdras 8:22
Whose service is conversant in wind and fire; whose word is true, and sayings constant; whose commandment is strong, and ordinance fearful;

Sirach 26:18
As the golden pillars are upon the sockets of silver; so are the fair feet with a constant heart.

Additions to Esther 13:3
Now when I asked my counsellors how this might be brought to pass, Aman, that excelled in wisdom among us, and was approved for his constant good will and steadfast fidelity, and had the honour of the second place in the kingdom,