SP2-0667: Message file sp1.msb not found sqlplus oracle
I found the solution ! As the oracle documentation said about ORACLE_HOME, My env variables was setted in the /etc/profilefile, but not visible from env | grep ORACLE_HOME or dbhomeso I executed the following command :

export ORACLE_HOME=/app/oracle/product/12.1.0/dbhome_1


and now it works