Therein

THEREIN', adverb [there and in.] In that or this place, time or thing.

Bring forth abundantly in the earth and multiply therein [[Genesis 9#7|Genesis 9:7]].

Ye shall keep the sabbath--whosoever doeth any work therein--that soul shall be cut off. [[Exodus 31#14|Exodus 31:14]].

THEREIN our letters do not well agree.