1: πάντοτε
(Strong's #3842 — Adverb — pantote — pan'-tot-eh )

"at all times, always" (akin to pas, "all"), is translated "ever" in Luke 15:31; John 18:20; 1—Thessalonians 4:17; 5:15; 2—Timothy 3:7; Hebrews 7:25; "evermore" in John 6:34; in 1—Thessalonians 5:16 , RV, "alway," for AV, "evermore." It there means "on all occasions," as, e.g., 1—Thessalonians 1:2; 3:6; 5:15; 2—Thessalonians 1:3,11; 2:13 . See ALWAYS.

2: ἀεί
(Strong's #104 — Adverb — aei — ah-eye' )

"ever," is used (a) of continuous time, signifying "unceasingly, perpetually," Acts 7:51; 2—Corinthians 4:11; 6:10; Titus 1:12; Hebrews 3:10; (b) of successive occurrences, signifying "on every occasion," 1—Peter 3:15; 2—Peter 1:12 . Some texts have the word in Mark 15:8 . See ALWAYS.

Hebrews 7:310:1,12,14Jude 1:13Matthew 21:19Mark 3:2911:14Luke 1:55John 4:146:51,588:35 1—Corinthians 8:132—Corinthians 9:9Hebrews 5:66:207:17,21,24,281—Peter 1:251—John 2:172—John 1:2Matthew 6:13 Luke 1:33Romans 1:259:511:3616:27 2—Corinthians 11:31Hebrews 13:8Galatians 1:5Philippians 4:201—Timothy 1:172—Timothy 4:18Hebrews 13:211—Peter 4:115:11 Revelation 1:6 Revelation 14:11Hebrews 1:8Ephesians 3:21Jude 1:25 2—Peter 3:18