1 Thessalonians 3:8

6 But now when Timotheus came from you unto us, and brought us good tidings of your faith and charity, and that ye have good remembrance of us always, desiring greatly to see us, as we also to see you:

7 Therefore, brethren, we were comforted over you in all our affliction and distress by your faith:

For now we live, if ye stand fast in the Lord.

9 For what thanks can we render to God again for you, for all the joy wherewith we joy for your sakes before our God;

10 Night and day praying exceedingly that we might see your face, and might perfect that which is lacking in your faith?

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB
For now we can go on living, as long as you are standing firm in the Lord.
KJV
For now we live, if ye stand fast in the Lord.
WEB
For now we live, if you stand fast in the Lord.
ASV
for now we live, if ye stand fast in the Lord.
DARBY
because now we live if *ye* stand firm in [the] Lord.
BLB
For now we live, if you⁺ are standing firm in the Lord.
ÅB
For nå lever vi, såfremt dere står fast i Herren.
OTB
for nå lever vi virkelig, hvis dere forblir standhaftige i Herren.
B1930
For nu lever vi, såfremt I står fast i Herren.

Study notes (Tyndale)

Original text and word study

Cross references