"Do not store your valuables [here] on earth, where moths can eat them and where rust can corrode them, and where burglars can break in and steal [them].

But your stubbornness and refusal to repent are storing up wrath [i.e., punishment] for yourselves, [to be experienced] on the Day of Wrath [i.e., the day of judgment] when God's just judgment will be revealed.

Iniquity

God considered Christ to be sinful on our behalf, even though He never sinned, so that we could be considered right with God through Him.

For his

[But by saying this] you are witnesses [against] yourselves, that you are the sons of those who murdered the prophets [i.e., indicating your approval of their actions].

He rewardeth

For the Son of man will return in the splendor of His Father, accompanied by His angels. Then He will reward or punish every person in proportion to what he has done [with his life].

Alexander the metal worker did me much harm; the Lord will repay him for what he did.

Give back to her the way [i.e., the kind of treatment] she has given back [to others], and repay her double for what she has done. Mix a double dose for her from her own cup.