Titus 1:9
Embracing that faithful word which is according to doctrine, that he may be able to exhort in sound doctrine, and to convince the gainsayers.
Acts 2:42
And they were persevering in the doctrine of the apostles, and in the communication of the breaking of bread, and in prayers.
Romans 16:17
Now I beseech you, brethren, to mark them who make dissensions and offences contrary to the doctrine which you have learned, and avoid them
Embracing that faithful word which is according to doctrine, that he may be able to exhort in sound doctrine, and to convince the gainsayers.
Acts 2:42
And they were persevering in the doctrine of the apostles, and in the communication of the breaking of bread, and in prayers.
Romans 16:17
Now I beseech you, brethren, to mark them who make dissensions and offences contrary to the doctrine which you have learned, and avoid them