Steadfast /(-fȧst)/

Stead·fast

Steadfast

a.
  1. Firmly fixed or established; fast fixed; firm.
  2. Not fickle or wavering; constant; firm; resolute; unswerving; steady.
    Abide steadfast unto him [thy neighbor] in the time of his trouble.
    — Ecclus. xxii. 23.
    Whom resist steadfast in the faith.