LITV:
Rom 14:1 And receive the one who is weak in the faith, not to judgments of your thoughts.
Rom 14:2 One indeed believes to eat all things, but being weak, another one eats vegetables.
Rom 14:3 The one eating, do not despise the one not eating. And the one not eating, do not judge the one eating, for God received him.
WEAK:
G770
ἀσθενέω
astheneō
Total KJV Occurrences: 42
weak, 21
Act_20:35, Rom_4:19, Rom_8:3, Rom_14:1-2 (2), Rom_14:21, 1Co_8:9, 1Co_8:11-12 (2), 1Co_9:22 (3), 1Co_11:30, 2Co_10:10, 2Co_11:21, 2Co_11:29 (2), 2Co_12:10, 2Co_13:3-4 (2), 2Co_13:9
sick, 17
Mat_10:8, Mat_25:36, Mar_6:56, Luk_4:40, Luk_7:10, Luk_9:2, Joh_4:46, Joh_11:1-3 (3), Joh_11:6, Act_9:37, Act_19:12, Phi_2:26-27 (2), 2Ti_4:20, Jam_5:14
impotent, 2
Joh_5:3, Joh_5:7
diseased, 1
Joh_6:2
made (weak), 1
Rom_14:21
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2Co 12:9 And He said to me, My grace is sufficient for you, for My power is perfected in weakness. Therefore, I will rather gladly boast in my weaknesses, that the power of Christ may overshadow me.
2Co 12:10 Because of this, I am pleased in weaknesses, in insults, in dire needs, in persecutions, in distresses, for the sake of Christ. For when I may be weak, then I am powerful.
WEAK:
G770
ἀσθενέω
astheneō
Total KJV Occurrences: 42
weak, 21
Act_20:35, Rom_4:19, Rom_8:3, Rom_14:1-2 (2), Rom_14:21, 1Co_8:9, 1Co_8:11-12 (2), 1Co_9:22 (3), 1Co_11:30, 2Co_10:10, 2Co_11:21, 2Co_11:29 (2), 2Co_12:10, 2Co_13:3-4 (2), 2Co_13:9
sick, 17
Mat_10:8, Mat_25:36, Mar_6:56, Luk_4:40, Luk_7:10, Luk_9:2, Joh_4:46, Joh_11:1-3 (3), Joh_11:6, Act_9:37, Act_19:12, Phi_2:26-27 (2), 2Ti_4:20, Jam_5:14
impotent, 2
Joh_5:3, Joh_5:7
diseased, 1
Joh_6:2
made (weak), 1
Rom_14:21
WEAKNESSES:
G769
ἀσθένεια
astheneia
Total KJV Occurrences: 24
infirmities, 10
Mat_8:17, Luk_5:15, Luk_8:2, Rom_8:26, 2Co_11:30, 2Co_12:5, 2Co_12:9-10 (2), 1Ti_5:23, Heb_4:15
infirmity, 7
Luk_13:11-12 (2), Joh_5:5, Rom_6:19, Gal_4:13, Heb_5:2, Heb_7:28
weakness, 5
1Co_2:3, 1Co_15:43, 2Co_12:9, 2Co_13:4, Heb_11:34
diseases, 1
Act_28:9
sickness, 1
Joh_11:4
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G769 ἀσθένεια astheneia is a NOUN.
I note that G770 ἀσθενέω astheneō is actually a VERB, though it seems every KJV translation (and every other one I checked) almost always translate it with an adjective. I wonder how it might be translated with a VERB? Romans 14:21 gives a possible way in the KJV-- ...is made weak., and in the Concordant--...is being...weakened.
I won't swear that's the only way it could be done. Could be the VERB is simply TO BE WEAK.
Anyway. Just wanted to delve a little deeper so Scripture says what it says. For me, it's one thing to glory in "weaknesses" as Paul did, and quite another thing to glory in being "weak in the faith". Yet since it is the Lord who gives both the "measure" of faith according to His own will and the "increase" of faith, it is no less improper and prideful to glory in being strong in the faith. We are simply what we are according to His will, purpose, and counsel.