Long ago, a question posted in the Sharper Iron forum regarding the possessive form of “Jesus.” Is it Jesus’ or Jesus’s or something else?

Commenters provided good answers for the English usage and style options at the time. In short, Chicago Manual of Style called for one option, while other style guides had different rules.

Today, style manuals still differ on this point. In some cases, though, their specifications have changed.

Chicago Manual of Style (CMOS)

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The Scripture often uses military language for the Christian life. Most famously, I suppose, Paul describes the “armor” (lit. “panoply”) of the Christian warrior, supplied by God for both defense and offense (Ep 6.13-17). Christians who take a more pacifist approach to life (e.g. Quakers, Mennonites, and others) are sometimes troubled by other Christians who emphasize this language; I had a high school teacher who mocked the hymn “Onward, Christian Soldiers,” particularly the line “marching off to war.” (Incidentally, the music typically used for that hymn was composed by Arthur Sullivan,…

A Sermon delivered on Thursday evening, March 2, 1882, by the Rev. C. H. Spurgeon at the Metropolitan Tabernacle, Newington

(The Metropolitan Tabernacle Pulpit Sermons, vol. 28)

Like as a father pitieth his children,
so the Lord pitieth them that fear him. (Psalm 103:13)

In the former part of this psalm the Psalmist sang of God’s deeds of love, his gifts, his benefits, and his acts of kindness; but here he goes deeper into the divine motive, and hence he finds sweeter incentives to devout gratitude…