Verses with the word mothers in the New Testament (3 verses):

Mark 10:30
But he shall receive an hundredfold now in this time, houses, and brethren, and sisters, and mothers, and children, and lands, with persecutions; and in the world to come eternal life.

1 Timothy 1:9
Knowing this, that the law is not made for a righteous man, but for the lawless and disobedient, for the ungodly and for sinners, for unholy and profane, for murderers of fathers and murderers of mothers, for manslayers,

1 Timothy 5:2
The elder women as mothers; the younger as sisters, with all purity.