NET
31 The one true God acts in a faithful manner; the Lord’s promise is reliable; he is a shield to all who take shelter in him.
Darby
31 As for God, his way is perfect; The word of Jehovah is tried: He is a shield to all that trust in him.
KJV
31 [As for] God, his way [is] perfect; the word of the LORD [is] tried: he [is] a buckler to all them that trust in him.