Steadfast
Steadfast (-fȧst) , adjective
[Stead + fast, that is, fast in place.]
1.
Firmly fixed or established; fast fixed; firm.
This steadfast globe of earth.
2.
Not fickle or wavering; constant; firm; resolute; unswerving; steady.
Steadfast eye.
Abide steadfast unto him [thy neighbor] in the time of his trouble.
Whom resist steadfast in the faith.