New Living Translation
Dear brothers and sisters, when I was with you I couldn’t talk to you as I would to spiritual people. I had to talk as though you belonged to this world or as though you were infants in Christ.

American Standard Version
And I, brethren, could not speak unto you as unto spiritual, but as unto carnal, as unto babes in Christ.

Berean Study Bible
Brothers, I could not address you as spiritual, but as worldly—as infants in Christ.

Douay-Rheims Bible
AND I, brethren, could not speak to you as unto spiritual, but as unto carnal. As unto little ones in Christ.

English Revised Version
And I, brethren, could not speak unto you as unto spiritual, but as unto carnal, as unto babes in Christ.

King James Bible
And I, brethren, could not speak unto you as unto spiritual, but as unto carnal, even as unto babes in Christ.

World English Bible
Brothers, I couldn't speak to you as to spiritual, but as to fleshly, as to babies in Christ.

Young's Literal Translation
And I, brethren, was not able to speak to you as to spiritual, but as to fleshly -- as to babes in Christ;

1 Corinthians 3:1 Additional Translations ...