1 John 5:14 New English Translation

¹⁴And this is the confidence that we have before him: that^[a] whenever^[b] we ask anything according to his will, he hears us.

1 John 5:14 tn For the third time in 5:9-14 the author uses the construction αὕτη ἐστίν (hautē estin; 5:9, 11, 14). As in the previous instance (5:11) the ὅτι (hoti) clause which follows is epexegetical (explanatory) to the pronoun αὕτη and explains what the “confidence” (παρρησία, parrēsia) consists of (technically the subject is ἡ παρρησία, the predicate nominative is the pronoun αὕτη, and the ὅτι clause explains the predicate nominative): “And the confidence which we have before him is this, namely, that if we ask anything according to his will he hears us.”
1 John 5:14 tn A third-class condition is introduced by ἐάν (ean) + present subjunctive. Because the apodosis also contains a present tense verb (ἀκούει, akouei) this belongs in a subcategory of third-class conditional sentences known as present general. In the Koine period ἐάν can mean “when” or “whenever” and is virtually the equivalent of ὅταν (hotan; see BDAG 268 s.v. ἐάν 2). Thus the meaning here is, “whenever (i.e., if) we ask anything according to his will, then he hears us.”

New English Translation (NET)