You are rewarded for ministering to and serving the Lord Jesus Christ.

“Please let a little water be brought, and wash your feet, and rest yourselves under the tree.” (Gen 18:4)
“As they ministered [leitourgeo] to the Lord and fasted, the Holy Spirit said, Now separate to Me Barnabas and Saul for the work to which I have called them.” (Acts 13:2)
“that you may serve the Lord without distraction.” (1Cor 7:35)
“knowing that from the Lord you will receive the reward [antapodosis] of the inheritance; for you serve [douleuo] the Lord Christ.” (Col 3:24)
“For it is written, You shall worship the LORD your God, and Him only you shall serve.” (Matt 4:10)
“But one thing is needed, and Mary has chosen that good part, which will not be taken away from her.” (Lk 10:42)
“Get behind Me, Satan! For it is written, You shall worship the LORD your God, and Him only you shall serve.” (Lk 4:8)
“But the hour is coming, and now is, when the true worshipers will worship the Father in spirit and truth; for the Father is seeking such to worship Him.” (Jn 4:23)
“God is Spirit, and those who worship Him must worship in spirit and truth.” (Jn 4:24)
“but she has washed My feet with her tears and wiped them with the hair of her head. You gave Me no kiss, but this woman has not ceased to kiss My feet since the time I came in. You did not anoint My head with oil, but this woman has anointed My feet with fragrant oil.” (Lk 7:44-46)
“But the child ministered to the LORD before Eli the priest.” (1Sam 2:11)
“But Samuel ministered before the LORD, even as a child, wearing a linen ephod.” (1Sam 2:18)
“And now, Israel, what does the LORD your God require of you, but to fear the LORD your God, to walk in all His ways and to love Him, to serve the LORD your God with all your heart and with all your soul, and to keep the commandments of the LORD and His statutes which I command you today for your good?” (Deut 10:12-13)
“You shall walk after the LORD your God and fear Him, and keep His commandments and obey His voice; you shall serve Him and hold fast to Him.” (Deut 13:4)
“Now therefore, fear the LORD, serve Him in sincerity and in truth” (Josh 24:14)
“And the people said to Joshua, The LORD our God we will serve, and His voice we will obey!” (Josh 24:24)
“If you fear the LORD and serve Him and obey His voice, and do not rebel against the commandment of the LORD, then both you and the king who reigns over you will continue following the LORD your God.” (1Sam 12:14)
“As for you, my son Solomon, know the God of your father, and serve Him with a loyal heart and with a willing mind; for the LORD searches all hearts and understands all the intent of the thoughts.” (1Chr 28:9)
“Serve the LORD with gladness; come before His presence with singing.” (Ps 100:2)
Reading: Gen 16-18; Lk 16