G0104
ἀεί
always
ἀεί, adv., [in LXX: Isa.42:14 (מֵעוֹלָם) 51:13 (תָּמִיד), Ps 94(95):10, al. ;] ever; __1. of continuous time, unceasingly, perpetually: Act.7:51, 2 Co.4.11; 6:10, Tit.1:12, Heb.3:10. __2. Of successive occurrences, on every occasion (MM, VGT, see word): 1Pe.3:15, 2Pe.1:12. † (AS)
Full Thayer's lexicon entry
ἀεί — aeí
ἀεί (see αἰών, adverb (from Homer down), always;
1. perpetually, incessantly: Act 7:51; 2Co 4:11; 2Co 6:10; Tit 1:12; Heb 3:10.
2. invariably, at any and every time when according to the circumstances something is or ought to be done again: Mar 15:8 (T WH omit) (at every feast); 1Pe 3:15; 2Pe 1:12.
8 occurrences
Mark (1), Acts (1), II Corinthians (2), Titus (1), Hebrews (1), I Peter (1), II Peter (1)