NET

15 Also, we are found to be false witnesses about God, because we have testified against God that he raised Christ from the dead, when in reality he did not raise him, if indeed the dead are not raised.

Darby

15 And we are found also false witnesses of God; for we have witnessed concerning God that he raised^D8348 the Christ, whom he has not raised if indeed [those that are] dead are not raised.

Darby Bible Notes

raised - 'Are not raised,' vers. 15,16, applies to the abstract fact whenever it may be; the doctrinal fact as to dead people; 'he (Christ) is raised,' vers. 12,13,16,20, is an accomplished but continuing fact. The English tenses do not always secure this distinction. I have not put 'do not rise,' because then the thought of being raised by God is lost.

KJV

15 Yea, and we are found false witnesses of God; because we have testified of God that he raised up Christ: whom he raised not up, if so be that the dead rise not.

Strong's

15 Yea ^G1161, and^G2532 we are found^G2147 false witnesses^G5575 of God^G2316; because^G3754 we have testified^G3140 of^G2596 God^G2316 that^G3754 he raised up^G1453 Christ^G5547: whom^G3739 he raised^G1453 not^G3756 up^G1453, if^G1512 so be^G686 that the dead^G3498 rise^G1453 not^G3756.