Romans 8:29

for whom he before approv'd, he predispos'd to follow the example of his son, who was to conduct them all as their elder brother;

Hebrews 12:23

the church of the first-born who are enroll'd in heaven, to God the judge of all, to the spirits of just men made perfect,

Treasury of Scripture Knowledge

Summary

All the firstling males that come of thy herd and of thy flock thou shalt sanctify unto the LORD thy God: thou shalt do no work with the firstling of thy bullock, nor shear the firstling of thy sheep.

The firstling

Bible References

The firstling

Romans 8:29
for whom he before approv'd, he predispos'd to follow the example of his son, who was to conduct them all as their elder brother;
Hebrews 12:23
the church of the first-born who are enroll'd in heaven, to God the judge of all, to the spirits of just men made perfect,