Verses with the word heir in the New Testament (9 verses):

Matthew 21:38
But when the husbandmen saw the son, they said among themselves, This is the heir; come, let us kill him, and let us seize on his inheritance.

Mark 12:7
But those husbandmen said among themselves, This is the heir; come, let us kill him, and the inheritance shall be our's.

Luke 20:14
But when the husbandmen saw him, they reasoned among themselves, saying, This is the heir: come, let us kill him, that the inheritance may be ours.

Romans 4:13
For the promise, that he should be the heir of the world, was not to Abraham, or to his seed, through the law, but through the righteousness of faith.

Galatians 4:1
Now I say, That the heir, as long as he is a child, differeth nothing from a servant, though he be lord of all;

Galatians 4:7
Wherefore thou art no more a servant, but a son; and if a son, then an heir of God through Christ.

Galatians 4:30
Nevertheless what saith the scripture? Cast out the bondwoman and her son: for the son of the bondwoman shall not be heir with the son of the freewoman.

Hebrews 1:2
Hath in these last days spoken unto us by his Son, whom he hath appointed heir of all things, by whom also he made the worlds;

Hebrews 11:7
By faith Noah, being warned of God of things not seen as yet, moved with fear, prepared an ark to the saving of his house; by the which he condemned the world, and became heir of the righteousness which is by faith.