Be strong in the faith!
Endure, perservere, stay motivated in truth and the mercy of our Lord, for He is Lord of all.
Acts 10:36 Douay-Rheims 1899 American Edition
God sent the word to the children of Israel, preaching peace by Jesus Christ: (he is Lord of all.)
Ephesians 6:10 Darby
For the rest, brethren, be strong in [the] Lord, and in the might of his strength.
1 Corinthians 16:13 WEB
Watch! Stand firm in the faith! Be courageous! Be strong!
Romans 10:17 WEB
So faith comes by hearing, and hearing by the word of God.
Hebrews 11:1 WEB
Now faith is assurance of things hoped for, proof of things not seen.
2 Corinthians 5:7 WEB
for we walk by faith, not by sight.
Hebrews 11:6 WEB
Without faith it is impossible to be well pleasing to him, for he who comes to God must believe that he exists, and that he is a rewarder of those who seek him.