Ephesians 6:8

6:8 because you know that each person, whether slave or free, if he does something good, this will be rewarded by the Lord.

Hebrews 6:10

6:10 For God is not unjust so as to forget your work and the love you have demonstrated for his name, in having served and continuing to serve the saints.

sn The pronoun “this” (τοῦτο, touto) stands first in its clause for emphasis, and stresses the fact that God will reward those, who in seeking him, do good.