3:17 If it is so Even if death is the consequence of noncompliance, they will still hold fast to their religious commitments and trust God for deliverance.
our God A courageous proclamation of faith. God is both able and faithful to deliver His people.
Faithlife Study Bible
3:17, 18 he will deliver … But if not. These verses express the central theme of the chapter. The idea is not that God will always protect His people from physical harm (Is. 43:1, 2). He may do that and certainly is able to. The central idea is that God’s people should be obedient to Him whatever the consequences.
Reformation Study Bible